Hans Olofsson
Professor vid
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik, Galaktisk astrofysik
Min forskning berör den sista utvecklingen av sol-liknande stjärnor på och efter den asymptotiska jättegrenen (AGB). Dessa stjärnor bidrar på ett signifikant sätt till galaxernas livscykel, kanske redan i det unga universum. Deras massförlust är den viktigaste processen, och i stjärnvindarna skapas den stoft- och molekyllinjestrålning som används i forskningen. Av speciellt intresse är vindarnas sammansättning, dvs förekomsthalter av atomer och molekyler, isotopkvoter, och stoftsammansättningar. Slutligen så är den dramatiska utvecklingen från AGB-stjärna till planetarisk nebulosa av stort intresse.
Källa: chalmers.se
Visar 120 publikationer
2019
HD 101584: circumstellar characteristics and evolutionary status
Hans Olofsson, Theo Khouri, Matthias Maercker et al
Astronomy and Astrophysics. Vol. 623
Artikel i vetenskaplig tidskrift
2019
Detection of highly excited OH towards AGB stars: A new probe of shocked gas in the extended atmospheres
Theo Khouri, Luis Velilla Prieto, Elvire De Beck et al
Astronomy and Astrophysics. Vol. 623
Artikel i vetenskaplig tidskrift
2019
ALMA observations of the "fresh" carbon-rich AGB star TX Piscium The discovery of an elliptical detached shell
M. Brunner, M. Mecina, Matthias Maercker et al
Astronomy and Astrophysics. Vol. 621
Artikel i vetenskaplig tidskrift
2018
Rotation of the asymptotic giant branch star R Doradus
Wouter Vlemmings, Theo Khouri, Elvire De Beck et al
Astronomy and Astrophysics. Vol. 613
Artikel i vetenskaplig tidskrift
2018
High-resolution observations of gas and dust around Mira using ALMA and SPHERE/ZIMPOL
Theo Khouri, Wouter Vlemmings, Hans Olofsson et al
Astronomy and Astrophysics. Vol. 620
Artikel i vetenskaplig tidskrift
2018
Circumstellar environment of the M-type AGB star R Doradus APEX spectral scan at 159.0-368.5GHz
Elvire De Beck, Hans Olofsson
Astronomy and Astrophysics. Vol. 615
Artikel i vetenskaplig tidskrift
2018
Sulphur-bearing molecules in AGB stars. Part 2. II. Abundances and distributions of CS and SiS
T. Danilovich, S. Ramstedt, D. Gobrecht et al
Astronomy and Astrophysics. Vol. 617
Artikel i vetenskaplig tidskrift
2018
SEPIA - A new single pixel receiver at the APEX telescope
Victor Belitsky, Igor Lapkin, Mathias Fredrixon et al
Astronomy and Astrophysics. Vol. 612
Artikel i vetenskaplig tidskrift
2018
Mass loss of stars on the asymptotic giant branch: Mechanisms, models and measurements
S. Höfner, Hans Olofsson
Astronomy and Astrophysics Review. Vol. 26 (1)
Reviewartikel
2017
ALMA Compact Array observations of the Fried Egg nebula: Evidence for large-scale asymmetric mass-loss from the yellow hypergiant IRAS 17163-3907
Sofia Wallström, E. Lagadec, Sebastien Muller et al
Astronomy and Astrophysics. Vol. 597, p. A99, pp. 1-10
Artikel i vetenskaplig tidskrift
2017
Aperture synthesis imaging of the carbon AGB star R Sculptoris: Detection of a complex structure and a dominating spot on the stellar disk
M. Wittkowski, K. H. Hofmann, S. Höfner et al
Astronomy and Astrophysics. Vol. 601
Artikel i vetenskaplig tidskrift
2017
Sulphur-bearing molecules in AGB stars. Part I. The occurrence of hydrogen sulphide
Taissa Danilovich, M. Van De Sande, Elvire De Beck et al
Astronomy and Astrophysics. Vol. 606
Artikel i vetenskaplig tidskrift
2017
First detection of methanol towards a post-AGB object, HD 101584
Hans Olofsson, Wouter Vlemmings, Per Bergman et al
Astronomy and Astrophysics. Vol. 603, p. L2-
Artikel i vetenskaplig tidskrift
2017
Search for aluminium monoxide in the winds of oxygen-rich AGB stars
Elvire De Beck, L. Decin, S. Ramstedt et al
Astronomy and Astrophysics. Vol. 598, p. A53-
Artikel i vetenskaplig tidskrift
2017
(HCN)-C-12 and (HCN)-C-13 excitation analysis in the circumstellar outflow of R Sculptoris
Maryam Saberi, Matthias Maercker, Elvire De Beck et al
Astronomy and Astrophysics. Vol. 599
Artikel i vetenskaplig tidskrift
2017
The VLTI/MIDI view on the inner mass loss of evolved stars from the Herschel MESS sample
C. Paladini, D. Klotz, S. Sacuto et al
Astronomy and Astrophysics. Vol. 600
Artikel i vetenskaplig tidskrift
2017
Water isotopologues in the circumstellar envelopes of M-type AGB stars
Taissa Danilovich, Robin Lombaert, L. Decin et al
Astronomy and Astrophysics. Vol. 602, p. Article number A14-
Artikel i vetenskaplig tidskrift
2017
The circumstellar envelope around the S-type AGB star W Aql Effects of an eccentric binary orbit
S. Ramstedt, S. Mohamed, Wouter Vlemmings et al
Astronomy and Astrophysics. Vol. 605
Artikel i vetenskaplig tidskrift
2017
Nucleosynthesis in AGB stars traced by oxygen isotopic ratios: I. Determining the stellar initial mass by means of the 17O/18O ratio
R. De Nutte, L. Decin, Hans Olofsson et al
Astronomy and Astrophysics. Vol. 600
Artikel i vetenskaplig tidskrift
2017
Rings and filaments: The remarkable detached CO shell of U Antliae
F. Kerschbaum, Matthias Maercker, M. Brunner et al
Astronomy and Astrophysics. Vol. 605
Artikel i vetenskaplig tidskrift
2017
The shock-heated atmosphere of an asymptotic giant branch star resolved by ALMA
Wouter Vlemmings, Theo Khouri, Eamon O Gorman et al
Nature Astronomy. Vol. 1 (12), p. 848-853
Artikel i vetenskaplig tidskrift
2016
Herschel/HIFI observations of the circumstellar ammonia lines in IRC+10216
M. Schmidt, J. H. He, R. Szczerba et al
Astronomy and Astrophysics. Vol. 592
Artikel i vetenskaplig tidskrift
2016
The ALMA detection of CO rotational line emission in AGB stars in the Large Magellanic Cloud
M. A. T. Groenewegen, Wouter Vlemmings, P. Marigo et al
Astronomy and Astrophysics. Vol. 596, p. 50-
Artikel i vetenskaplig tidskrift
2016
A detailed view of the gas shell around R Sculptoris with ALMA
Matthias Maercker, Wouter Vlemmings, M. Brunner et al
Astronomy and Astrophysics. Vol. 586 (Art. Nr. A5)
Artikel i vetenskaplig tidskrift
2016
Sulphur molecules in the circumstellar envelopes of M-type AGB stars
Taissa Danilovich, Elvire De Beck, John H Black et al
Astronomy and Astrophysics. Vol. 588
Artikel i vetenskaplig tidskrift
2016
An ALMA view of the post-AGB object HD 101584
Hans Olofsson, Wouter Vlemmings, Matthias Maercker et al
Journal of Physics: Conference Series. Vol. 728 (4)
Paper i proceeding
2016
A HIFI view on circumstellar H 2 O in M-type AGB stars: Radiative transfer, velocity profiles, and H 2 O line cooling
Matthias Maercker, Taissa Danilovich, Hans Olofsson et al
Astronomy and Astrophysics. Vol. 591, p. Art. no. A44-
Artikel i vetenskaplig tidskrift
2015
Classifying the secondary component of the binary star W Aquilae
Taissa Danilovich, G. Olofsson, John H Black et al
Astronomy and Astrophysics. Vol. 574, p. Art- no. A23
Artikel i vetenskaplig tidskrift
2015
Herschel observations of extreme OH/IR stars: The isotopic ratios of oxygen as a sign-post for the stellar mass
Kay Justtanont, M. J. Barlow, Jadl Blommaert et al
Astronomy and Astrophysics. Vol. 578
Artikel i vetenskaplig tidskrift
2015
H2O Isotopologues in Extreme OH/IR Stars
Kay Justtanont, M. J. Barlow, Jadl Blommaert et al
Astronomical Society of the Pacific Conference Series: Conference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time, Vienna, Austria, JUL 28-AUG 01, 2014. Vol. 497, p. 85-89
Paper i proceeding
2015
Nucleosynthesis in AGB Stars Traced by Oxygen Isotopic Ratios
R. De Nutte, L. Decin, Hans Olofsson et al
Conference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time, Vienna, 28- July - 1 Aug. 2014: (Astronomical Society of the Pacific Conference Series). Vol. 497, p. 289-294
Paper i proceeding
2015
An ALMA View of the Complex Circumstellar Environment of the Post-AGB Object HD 101584
Hans Olofsson, Wouter Vlemmings, Matthias Maercker et al
4th ALMA Science Conference on Revolution in Astronomy with ALMA: The Third Year, Tokyo, Japan, 8-11 December. Vol. 499, p. 319-322
Paper i proceeding
2015
First 230? GHz VLBI fringes on 3C 279 using the APEX Telescope (Research Note)
Jan Wagner, A. Roy, T.P. Krichbaum et al
Astronomy and Astrophysics. Vol. 581
Artikel i vetenskaplig tidskrift
2015
The Circumstellar (CO)-C-12/(CO)-C-13 Ratio in AGB Stars of Different Chemical Type
Hans Olofsson, S. Ramstedt
Astronomical Society of the Pacific Conference Series: Conference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time, Vienna, Austria, JUL 28-AUG 01, 2014. Vol. 497, p. 295-300
Paper i proceeding
2015
New observations and models of circumstellar CO line emission of AGB stars in the Herschel SUCCESS programme
Taissa Danilovich, D. Teyssier, Kay Justtanont et al
Astronomy and Astrophysics. Vol. 581
Artikel i vetenskaplig tidskrift
2015
ALMA reveals sunburn: CO dissociation around AGB stars in the globular cluster 47 Tucanae
I. McDonald, A. Zijlstra, E. Lagadec et al
Monthly Notices of the Royal Astronomical Society. Vol. 453 (4), p. 4324-4336
Artikel i vetenskaplig tidskrift
2015
A new 3 mm band receiver for the Onsala 20 m antenna
Victor Belitsky, Igor Lapkin, Mathias Fredrixon et al
Astronomy and Astrophysics. Vol. 580
Artikel i vetenskaplig tidskrift
2015
Detailed Modelling of the Circumstellar Envelope of the S-type AGB Star W Aquilae
Taissa Danilovich, Per Bergman, Kay Justtanont et al
Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time, Conference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time, Vienna JUL 28-AUG 01, 2014. Vol. 497, p. 219-220
Paper i proceeding
2015
VLTI/MIDI Large Program: AGB Stars at Different Spatial Scales
C. Paladini, D. Klotz, M. Wittkowski et al
Conference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time, Vienna, Austria, JUL 28-AUG 01, 2014. Vol. 497, p. 97-102
Paper i proceeding
2015
Detection of Cl line emission from the detached CO shell of the AGB star R Sculptoris
Hans Olofsson, Per Bergman, Michael Lindqvist
Astronomy and Astrophysics. Vol. 582, p. 8-
Artikel i vetenskaplig tidskrift
2015
ALMA view of the circumstellar environment of the post-common-envelope-evolution binary system HD 101584
Hans Olofsson, Wouter Vlemmings, Matthias Maercker et al
Astronomy and Astrophysics. Vol. 576
Artikel i vetenskaplig tidskrift
2014
The wonderful complexity of the Mira AB system
S. Ramstedt, S. Mohamed, Wouter Vlemmings et al
Astronomy and Astrophysics. Vol. 570, p. Art. no. L14-
Artikel i vetenskaplig tidskrift
2014
The (CO)-C-12/(CO)-C-13 ratio in AGB stars of different chemical type Connection to the C-12/C-13 ratio and the evolution along the AGB
S. Ramstedt, Hans Olofsson
Astronomy and Astrophysics. Vol. 566
Artikel i vetenskaplig tidskrift
2014
The wind of W Hydrae as seen by Herschel I. The CO envelope
T. Khouri, A. de Koter, L. Decin et al
Astronomy and Astrophysics. Vol. 561, p. Article no. A5-
Artikel i vetenskaplig tidskrift
2014
Detailed modelling of the circumstellar molecular line emission of the S-type AGB star W Aquilae
Taissa Danilovich, Per Bergman, Kay Justtanont et al
Astronomy and Astrophysics. Vol. 569, p. Art. no. A76-
Artikel i vetenskaplig tidskrift
2014
The wind of W Hydrae as seen by Herschel II. The molecular envelope of W Hydrae
T. Khouri, A. de Koter, L. Decin et al
Astronomy and Astrophysics. Vol. 570, p. Art. no. A67-
Artikel i vetenskaplig tidskrift
2014
Outflows from Binary AGB stars with ALMA
S. Ramstedt, Matthias Maercker, Wouter Vlemmings et al
Asymmetrical Planetary Nebulae VI conference, Proceedings of the conference held 4-8 November, 2013, p. 75-
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2013
HIFISTARS Herschel/HIFI observations of VY Canis Majoris. Molecular-line inventory of the envelope around the largest known star
J. Alcolea, V. Bujarrabal, P. Planesas et al
Astronomy and Astrophysics. Vol. 559, p. (article nr.) A93-
Artikel i vetenskaplig tidskrift
2013
Swedish radio astronomy
Hans Olofsson
2013 7th European Conference on Antennas and Propagation, EuCAP 2013, p. 3152-3155
Paper i proceeding
2013
VLBI at APEX: First Fringes
Alan Roy, Jan Wagner, Michael Wunderlich et al
Proceedings of Science, 11th European VLBI Network Symposium & Users Meeting,, p. 1-6
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2013
LOFAR: The LOw-Frequency ARray
M. P. van Haarlem, M. W. Wise, A. W. Gunst et al
Astronomy and Astrophysics. Vol. 556 (August), p. article no. A2-
Artikel i vetenskaplig tidskrift
2013
ALMA observations of the variable 12CO/13CO ratio around the asymptotic giant branch star R Sculptoris
Wouter Vlemmings, Matthias Maercker, Michael Lindqvist et al
Astronomy and Astrophysics. Vol. 556, p. Art. no. L1-
Artikel i vetenskaplig tidskrift
2013
The wind of the M-type AGB star RT Virginis probed by VLTI/MIDI
S. Sacuto, S. Ramstedt, S. Höfner et al
Astronomy and Astrophysics. Vol. 551
Artikel i vetenskaplig tidskrift
2013
The abundance of HCN in circumstellar envelopes of AGB stars of different chemical type
Fredrik Schöier, S. Ramstedt, Hans Olofsson et al
Astronomy and Astrophysics. Vol. 550
Artikel i vetenskaplig tidskrift
2012
To be or not to be asymmetric? VLTI and the mass loss geometry of red giants
C. Paladini, D. Klotz, S. Sacuto et al
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8445, p. Art. no. 84451R-
Paper i proceeding
2012
Herschel/HIFI observations of red supergiants and yellow hypergiants I. Molecular inventory
D. Teyssier, G. Quintana-Lacaci, A. P. Marston et al
Astronomy and Astrophysics. Vol. 545, p. A99 (article no.)-
Artikel i vetenskaplig tidskrift
2012
TWINKLING STARS The disappearing SiO masers of W Aql
S. Ramstedt, Wouter Vlemmings, S. Mohamed et al
Proceedings of the International Astronomical Union. Vol. 8 (S287), p. 206 - 261
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2012
Unexpectedly large mass loss during the thermal pulse cycle of the red giant star R Sculptoris
Matthias Maercker, S. Mohamed, Wouter Vlemmings et al
Nature. Vol. 490 (7419), p. 232-234
Artikel i vetenskaplig tidskrift
2012
Herschel/HIFI observations of O-rich AGB stars: molecular inventory
Kay Justtanont, T. Khouri, Matthias Maercker et al
Astronomy and Astrophysics. Vol. 537, p. Article Number: A144 -
Artikel i vetenskaplig tidskrift
2012
The geometry of the close environment of SV Piscium as probed by VLTI/MIDI
D. Klotz, S. Sacuto, F. Kerschbaum et al
Astronomy and Astrophysics. Vol. 541
Artikel i vetenskaplig tidskrift
2012
LPVs as possible distance indicators in NGC147 and NGC185
D. Lorenz, T. Lebzelter, W. Nowotny et al
Astrophysics and Space Science Proceedings, p. 169-172
Paper i proceeding
2012
Herschel/HIFI observations of molecular emission in protoplanetary nebulae and young planetary nebulae
V. Bujarrabal, J. Alcolea, R. Soria-Ruiz et al
Astronomy and Astrophysics. Vol. 537, p. Article Number: A8-
Artikel i vetenskaplig tidskrift
2011
The Mass-Loss Rates and Molecular Abundances of S-type AGB Stars
Sofia Ramstedt, Fredrik Schöier, Hans Olofsson
Proceedings from conference Why Galaxies Care about AGB stars II, in Vienna 16 - 20 August 2010; published in Astronomical Society of the Pacific conf series, vol 445. Vol. 445, p. 263-268
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2011
Observing pulsars and fast transients with LOFAR
B. W. Stappers, J. W. T. Hessels, A. Alexov et al
Astronomy and Astrophysics. Vol. 530
Artikel i vetenskaplig tidskrift
2011
A chemical inventory of the S-type AGB star chi Cygni based on Herschel/HIFI observations of circumstellar line emission The importance of non-LTE chemical processes in a dynamical region
Fredrik Schöier, Matthias Maercker, Kay Justtanont et al
Astronomy and Astrophysics. Vol. 530
Artikel i vetenskaplig tidskrift
2011
AGB Mass-Loss Characteristics: Rates, Temporal Variation, and Geometries
Fredrik Schöier, Sofia Ramstedt, Matthias Maercker et al
Proceedings from conference Why Galaxies Care about AGB stars II, in Vienna 16 - 20 August 2010; published in Astronomical Society of the Pacific conf series, vol 445. Vol. 445, p. 253-262
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2011
The Widespread Occurrence of Water Vapor in the Circumstellar Envelopes of Carbon-Rich Asymptotic Giant Branch Stars: First Results From a Survey With Herschel/HIFI
D. A. Neufeld, E. Gonzalez-Alfonso, G. J. Melnick et al
Astrophysical Journal Letters. Vol. 727 (2)
Artikel i vetenskaplig tidskrift
2011
A Possible Solution to the Mass-Loss Problem in M-type AGB Stars
Hans Olofsson, Sofia Ramstedt, Stephane Sacuto et al
Proceedings from conference Why Galaxies Care about AGB stars II, in Vienna 16 - 20 August 2010; published in Astronomical Society of the Pacific conf series, vol 445. Vol. 445, p. 365-366
Poster (konferens)
2011
Detection of interstellar hydrogen peroxide
Per Bergman, B. Parise, René Liseau et al
Astronomy and Astrophysics. Vol. 531, p. L8-
Artikel i vetenskaplig tidskrift
2011
A HIFI View of Circumstellar H2O Emission from the S-type AGB Star X Cyg
Matthias Maercker, Fredrik Schöier, Kay Justtanont et al
Proceedings from conference Why Galaxies Care about AGB stars II, in Vienna 16 - 20 August 2010; published in Astronomical Society of the Pacific conf series, vol 445. Vol. 445, p. 613-617
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2011
Detached Shells of Dust and Gas around Carbon Stars
Matthias Maercker, Hans Olofsson, Kjell Eriksson et al
Proceedings from conference Why Galaxies Care about AGB stars II, in Vienna 16 - 20 August 2010; published in Astronomical Society of the Pacific conf series, vol 445. Vol. 445, p. 345-346
Poster (konferens)
2011
Imaging the circumstellar dust around AGB stars with PolCor
S. Ramstedt, Matthias Maercker, G. Olofsson et al
Astronomy and Astrophysics. Vol. 531
Artikel i vetenskaplig tidskrift
2011
Imaging the Circumstellar Dust Distribution around AGB Stars with the NOT/PolCor Instrument
Sofia Ramstedt, Matthias Maercker, G. Olofsson et al
Proceedings from conference Why Galaxies Care about AGB stars II, in Vienna 16 - 20 August 2010; published in Astronomical Society of the Pacific conf series, vol 445. Vol. 445, p. 367-368
Poster (konferens)
2011
A Pilot Imaging Line Survey of RW LMi and IK Tau Using the Expanded Very Large Array
M. J. Claussen, Loránt Olivér Sjouwerman, M. P. Rupen et al
Astrophysical Journal Letters. Vol. 739 (1), p. L5-
Artikel i vetenskaplig tidskrift
2011
Long-period variables in NGC 147 and NGC 185
D. Lorenz, T. Lebzelter, W. Nowotny et al
Astronomy and Astrophysics. Vol. 532
Artikel i vetenskaplig tidskrift
2011
X Herculis and TX Piscium: two cases of ISM interaction with stellar winds observed by Herschel
A. Jorissen, A. Mayer, S. Van Eck et al
Astronomy and Astrophysics. Vol. 532
Artikel i vetenskaplig tidskrift
2010
A HIFI preview of warm molecular gas around chi Cygni: first detection of H2O emission toward an S-type AGB star
Kay Justtanont, L. Decin, Fredrik Schöier et al
Astronomy and Astrophysics. Vol. 521 (1), p. Article Number: L6-
Artikel i vetenskaplig tidskrift
2010
Polarisation observations of VY Canis Majoris H2O 532-441 620.701 GHz maser emission with HIFI
M. Harwit, M. Houde, P. Sonnentrucker et al
Astronomy and Astrophysics. Vol. 521 (1), p. Article Number: L51-
Artikel i vetenskaplig tidskrift
2010
Discovery of water vapour in the carbon star V Cygni from observations with Herschel/HIFI
D. A. Neufeld, E. Gonzalez-Alfonso, G. J. Melnick et al
Astronomy and Astrophysics. Vol. 521 (1), p. Article Number: L5-
Artikel i vetenskaplig tidskrift
2010
Water content and wind acceleration in the envelope around the oxygen-rich AGB star IK Tauri as seen by Herschel/HIFI
L. Decin, Kay Justtanont, Elvire De Beck et al
Astronomy and Astrophysics. Vol. 521 (1), p. Article Number: L4-
Artikel i vetenskaplig tidskrift
2010
Herschel/HIFI deepens the circumstellar NH3 enigma
K. M. Menten, F. Wyrowski, J. Alcolea et al
Astronomy and Astrophysics. Vol. 521 (1), p. Article Number: L7-
Artikel i vetenskaplig tidskrift
2010
High-resolution HST/ACS images of detached shells around carbon stars
Hans Olofsson, Matthias Maercker, K. Eriksson et al
Astronomy and Astrophysics. Vol. 515 (JUN 2010), p. A270-
Artikel i vetenskaplig tidskrift
2010
The detached dust and gas shells around the carbon star U Antliae
Matthias Maercker, Hans Olofsson, K. Eriksson et al
Astronomy and Astrophysics. Vol. 511 (1), p. A37-
Artikel i vetenskaplig tidskrift
2010
Herschel/HIFI observations of high-J CO transitions in the protoplanetary nebula CRL 618
V. Bujarrabal, J. Alcolea, R. Soria-Ruiz et al
Astronomy and Astrophysics. Vol. 521 (1), p. Article Number: L3-
Artikel i vetenskaplig tidskrift
2010
Mapping the 12CO J = 1-0 and J = 2-1 emission in AGB and early post-AGB circumstellar envelopes. I. The COSAS program, first sample
A. Castro-Carrizo, G. Quintana-Lacaci, R. Neri et al
Astronomy and Astrophysics. Vol. 523 (4), p. A59-
Artikel i vetenskaplig tidskrift
2010
APEX: Five years of operations
A. Lundgren, D. Rabanus, R. Güsten et al
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7737
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2009
Circumstellar molecular line emission from S-type AGB stars: mass-loss rates and SiO abundances
S. Ramstedt, Fredrik Schöier, Hans Olofsson
Astronomy and Astrophysics. Vol. 499 (2), p. 515-527
Artikel i vetenskaplig tidskrift
2009
Evidence of triggered star formation in G327.3-0.6. Dust-continuum mapping of an infrared dark cloud with P-ArTéMiS
V. Minier, P. André, Per Bergman et al
Astronomy and Astrophysics. Vol. 501 (1), p. 1-4
Artikel i vetenskaplig tidskrift
2009
Circumstellar water vapour in M-type AGB-stars: constraints from H2O(110-101) lines obtained with Odin
Matthias Maercker, Fredrik Schöier, Hans Olofsson et al
Astronomy and Astrophysics. Vol. 494, p. 243-252
Artikel i vetenskaplig tidskrift
2009
CO in OH/IR stars close to the Galactic centre (Research Note)
Anders Winnberg, S. Deguchi, M.J. Reid et al
Astronomy and Astrophysics. Vol. 497, p. 177-181
Artikel i vetenskaplig tidskrift
2009
The detached dust and gas shells around the carbon star U Ant
Matthias Maercker, Hans Olofsson, K. Eriksson et al
Preprint
2008
A Swedish heterodyne facility instrument for the APEX telescope
Vessen Vassilev, Denis Meledin, Igor Lapkin et al
Astronomy and Astrophysics. Vol. 490 (3), p. 1157-1163
Artikel i vetenskaplig tidskrift
2008
Nb3Al thin film deposition for low-noise terahertz electronics
Dimitar Milkov Dochev, Alexey Pavolotskiy, Victor Belitsky et al
Journal of Physics : Conference Series. Vol. 97 (1), p. 012072 (6 pp.)-
Artikel i vetenskaplig tidskrift
2008
Probing chemical processes in AGB stars
Fredrik Schöier, Hans Olofsson
in Proceedings of "Organic matter in space", Hong Kong Feb. 18-22, 2008, IAU symposium 251, eds. S. Kwok, S. Sandfjord, Cambridge University Press, p. 201-205
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2008
The study of evolved stars with ALMA
Hans Olofsson
Astrophysics and Space Science. Vol. 313 (1-3), p. 201-207
Artikel i vetenskaplig tidskrift
2008
A circumstellar journey-physics and chemistry of AGB stellar winds
Hans Olofsson
Physica scripta. Topical Issues. Vol. T133 (014028)
Paper i proceeding
2008
Circumstellar H2O in M-type AGB stars
Matthias Maercker, Fredrik Schöier, Hans Olofsson
in Proceedings of "Organic Matter in Space", Hong Kong, Feb 18-22, 2008, IAU symposium 251, eds. S. Kwok, S. Sandford, Cambridge University Press, p. 163-164
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2008
Circumstellar water vapour in M-type AGB stars: radiative transfer models, abundances, and predictions for HIFI
Matthias Maercker, Fredrik Schöier, Hans Olofsson et al
Astronomy & Astrophysics. Vol. 479, p. 779-791
Artikel i vetenskaplig tidskrift
2008
On the reliability of mass-loss-rate estimates for AGB stars
S. Ramstedt, Fredrik Schöier, Hans Olofsson et al
Astronomy & Astrophysics. Vol. 487, p. 645-657
Artikel i vetenskaplig tidskrift
2008
MERLIN observations of OH/IR stars
Michael Lindqvist, Fredrik Schöier, Hans Olofsson et al
Proceedings of the 9th European VLBI Network Symposium on The role of VLBI in the Golden Age for Radio Astronomy and EVN Users Meeting., p. 81-83
Poster (konferens)
2008
Organic Molecules in the spectral line survey of Orion KL with the Odin Satellite from 486-492 GHz and 541-577 GHz
N. Koning, S. Kwok, P. Bernath et al
in Proceedings of "Organic Matter in Space", Hong Kong Feb. 18-22, 2008, IAU symposium 251, eds. S. Kwok, S. Sandfjord, Cambridge University Press, p. 29-30
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2008
The study of evolved stars with ALMA
Hans Olofsson
Proceedings of "Science with the Atacama Large Millimeter Array", eds. R. Bachiller and J. Cernicharo, Madrid, 13-17 Nov. 2006, Springer, p. 201-207
Paper i proceeding
2008
Star Formation and Molecular Gas in M83
A.A. Lundgren, Hans Olofsson, Tommy Wiklind et al
Pathways Through an Eclectic Universe, Proc. of conf. April 2007 in Tenerife, Spain, Eds. J.H. Knapen, T.J. Mahoney, A. Vazdekis, ASP Conference Series, San Francisco. Vol. 390, p. 144-
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2008
The physics and chemistry of circumstellar envelopes of S-stars on the AGB
S. Ramstedt, Fredrik Schöier, Hans Olofsson
in Proceedings of "Organic Matter in Space", Hong Kong feb. 18-22, 2008, IAU symposium 251, eds. S. Kwok, S. Sandfjord, Cambridge University Press, p. 167-168
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2007
Facility Heterodyne Receiver for the Atacama Pathfinder Experiment Telescope
Victor Belitsky, Igor Lapkin, Vessen Vassilev et al
Proceedings of Joint 32nd International Conference on Infrared Millimeter Waves and 15th International conference on Terahertz Electronics, Sept 3-7, 2007, City Hall, Cardiff, Wales, UK, p. 326-328
Paper i proceeding
2007
The Physics and Chemistry of Circumstellar Envelopes of S Stars on the AGB
S. Ramstedt, F.L. Schöier, Hans Olofsson
Proceedings of " Why galaxies care about stars: their importance as actors and probes", eds. F. Kerschbaum, C. Charbonnel and R.F. Wing, Vienna, August 2006, ASP Conference Series. Vol. 378, p. 335-336
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2007
The abundance of SiS in circumstellar envelopes around AGB stars
Fredrik Schöier, J. Bast, Hans Olofsson et al
Astronomy & Astrophysics. Vol. 473, p. 871-882
Artikel i vetenskaplig tidskrift
2007
Molecular oxygen in the p Ophiuchi cloud
B. Larsson, René Liseau, L. Pagani et al
Astronomy & Astrophysics. Vol. 466, p. 999-1003
Artikel i vetenskaplig tidskrift
2007
Nb3Al thin film deposition for low-noise terahertz electronics
Dimitar Milkov Dochev, Alexey Pavolotskiy, Victor Belitsky et al
8th European Conference on Applied Superconductivity
Poster (konferens)
2007
Non-Equilibrium Chemistry and Dust Formation in AGB Stars as Probed by SiO Line Emission
F.L. Schöier, Hans Olofsson, T. Wong et al
Proceedings of "Why galaxies care about stars: their importance as actors and probes", eds. F. Kerschbaum, C. Charbonnel and R.F. Wing, Vienna, August 2006, ASP Conference Series. Vol. 378, p. 341-342
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2007
Modelling of Circumstellar H2O Line Emission from M-type AGB Stars
Matthias Maercker, F.L. Schöier, Hans Olofsson et al
Proceedings of "Why galaxies care about AGB stars: their importance as actors and probes", eds. F. Kerschbaum, C. Charbonnel and R.F. Wing, Vienna, August 2006, ASP Conference Series. Vol. 378, p. 317-318
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2006
Molecular Abundandances in AGB Circumstellar Envelopes
Hans Olofsson
Astrochemistry: Recent successes and current challenges, Proc. of the 231st symposium of the IAU, Pacific Grove, California, Aug-Sept 2005, p. 499-507
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2006
Mass-loss properties of S-stars on the AGB
S. Ramstedt, F.L. Schöier, Hans Olofsson et al
Astronomy & Astrophysics. Vol. 454, p. L103-L106
Artikel i vetenskaplig tidskrift
2006
A 0.8 mm heterodyne facility receiver for the APEX telescope
Christophe Risacher, Vessen Vassilev, Raquel Monje et al
Astronomy & Astrophysics. Vol. 454, p. L17-L20
Artikel i vetenskaplig tidskrift
2006
The circumstellar environment of asymptotic giant branch stars
Hans Olofsson
Astronomische Gesellschaft: Reviews in Modern Astronomy. The many facets of the Universe - Revelation by New Instruments, ed. S. Röser, Wiley-VCH. Vol. 19, p. 75-
Kapitel i bok
2006
The distribution of SiO in the circumstellar envelope around IRC+10216
F. Schöier, D. Fong, Hans Olofsson et al
The Astrophysical Journal. Vol. 649, p. 965-972
Artikel i vetenskaplig tidskrift
2006
SiO in C-rich circumstellar envelopes of AGB stars: effects of non-LTE chemistry and grain adsorption
F.L. Schöier, Hans Olofsson, A.A. Lundgren
Astronomy & Astrophysics. Vol. 454, p. 247-255
Artikel i vetenskaplig tidskrift
2006
Observations of the Circumstellar Water 110-->101 and Ammonia 10-->00 Lines in IRC +10216 by the Odin Satellite
T.I. Hasegawa, S. Kwok, N. Koning et al
The Astrophysical Journal. Vol. 637, p. 791-797
Artikel i vetenskaplig tidskrift
2006
Circumstellar CO in OH/IR Stars Close to the Galactic Centre
Anders Winnberg, S. Deguchi, H.J. Habing et al
J. Physics: Conference Series. Vol. 54, p. 166-170
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2005
Molecules in bipolar proto-planetary nebulae
P.M. Woods, L.-Å. Nyman, F. Schöier et al
Astronomy & Astrophysics. Vol. 429 (3), p. 977-992
Artikel i vetenskaplig tidskrift
Visar 3 forskningsprojekt
2015–2018
Sol-liknande stjärnors sena utveckling
Hans Olofsson
Astronomi och plasmafysik
Vetenskapsrådet (VR)
2012–2014
Ordinära stjärnors extraordinära död
Hans Olofsson
Radioastronomi och astrofysik
Vetenskapsrådet (VR)
2009–2012
Advanced Radio Astronomy in Europe (RADIONET-FP7)
Hans Olofsson
Galaktisk astrofysik
Europeiska kommissionen (FP7)
Det kan finnas fler projekt där Hans Olofsson medverkar, men du måste vara inloggad som anställd på Chalmers för att kunna se dem.