Michael Lindqvist

Senior Research Engineer at Chalmers, Space, Earth and Environment, Onsala Space Observatory, Onsala Space Observatory, Observation Support

Michael Lindqvist is an astronomer and a large part of his work is to support VLBI observations at Onsala Space Observatory. His main interest in astrophysics concern the red giant stars, in particular the chemistry and kinematics of the circumstellar envelopes around asymptotic giant branch stars.

Source: chalmers.se

Showing 59 publications

2019

HD 101584: circumstellar characteristics and evolutionary status

Hans Olofsson, Theo Khouri, Matthias Maercker et al
Astronomy and Astrophysics. Vol. 623
Journal article
2019

Spatially resolved origin of millimeter-wave linear polarization in the nuclear region of 3C 84

J. Y. Kim, T.P. Krichbaum, A. Marscher et al
Astronomy and Astrophysics. Vol. 622 (1)
Journal article
2019

First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole

Kazunori Akiyama, Antxon Alberdi, Walter Alef et al
Astrophysical Journal Letters. Vol. 875 (1)
Journal article
2019

First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole

Kazunori Akiyama, Antxon Alberdi, Walter Alef et al
Astrophysical Journal Letters. Vol. 875 (1)
Journal article
2019

First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring

Kazunori Akiyama, Antxon Alberdi, Walter Alef et al
Astrophysical Journal Letters. Vol. 875 (1)
Journal article
2019

First M87 Event Horizon Telescope Results. VI. the Shadow and Mass of the Central Black Hole

Kazunori Akiyama, Antxon Alberdi, Walter Alef et al
Astrophysical Journal Letters. Vol. 875 (1)
Journal article
2019

The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project

Oliver Porth, Koushik Chatterjee, Ramesh Narayan et al
Astrophysical Journal, Supplement Series. Vol. 243 (2)
Journal article
2019

Global millimeter VLBI array survey of ultracompact extragalactic radio sources at 86 GHz

Dhanya G. Nair, A. P. Lobanov, T.P. Krichbaum et al
Astronomy and Astrophysics. Vol. 622
Review article
2018

The limb-brightened jet of M87 down to the 7 Schwarzschild radii scale

J. Y. Kim, T.P. Krichbaum, R.S. Lu et al
Astronomy and Astrophysics. Vol. 616
Journal article
2018

RadioAstron gravitational redshift experiment: Status update

D. A. Litvinov, U. Bach, Norbert Bartel et al
14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings, p. 3569-3575
Paper in proceedings
2018

Design trade-offs in feed systems for ultra-wideband VLBI observations

Jonas Flygare, Miroslav Pantaleev, John Conway et al
Conference contribution
2018

Probing the gravitational redshift with an Earth-orbiting satellite

Dmitry Litvinov, V. N. Rudenko, A. V. Alakoz et al
Physics Letters, Section A: General, Atomic and Solid State Physics. Vol. 382 (33), p. 2192-2198
Journal article
2018

Ultra-wideband feed systems for the EVN and SKA - evaluated for VGOS

Jonas Flygare, Miroslav Pantaleev, John Conway et al
Conference contribution
2018

Detection of Intrinsic Source Structure at similar to 3 Schwarzschild Radii with Millimeter-VLBI Observations of SAGITTARIUS A*

Ru-Sen Lu, Thomas P. Krichbaum, Alan L. Roy et al
Astrophysical Journal. Vol. 859 (1)
Journal article
2018

Molecular line study of the S-type AGB star W Aquilae: ALMA observations of CS, SiS, SiO and HCN

M. Brunner, Taissa Danilovich, S. Ramstedt et al
Astronomy and Astrophysics. Vol. 617
Journal article
2017

Single-dish and VLBI observations of Cygnus X-3 during the 2016 giant flare episode

E. Egron, A. Pellizzoni, M. Giroletti et al
Monthly Notices of the Royal Astronomical Society. Vol. 471 (3), p. 2703-2714
Journal article
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
Journal article
2017

Location of γ-ray emission and magnetic field strengths in OJ 287

J.A. Hodgson, T.P. Krichbaum, A.P. Marscher et al
Astronomy and Astrophysics. Vol. 597, p. 80-
Journal article
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-
Journal article
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
Journal article
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
Journal article
2016

Planetary Radio Interferometry and Doppler Experiment (PRIDE) technique: A test case of the Mars Express Phobos fly-by

Dmitry Duev, Sergei Pogrebenko, G. Cimo et al
Astronomy and Astrophysics. Vol. 593 (A34)
Journal article
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)
Journal article
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 in proceedings
2016

A highly magnetized twin-jet base pinpoints a supermassive black hole

A. K. Baczko, R. Schulz, M. Kadler et al
Astronomy and Astrophysics. Vol. 593
Journal article
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 in proceedings
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
Journal article
2015

5 year Global 3-mm VLBI survey of Gamma-ray active blazars

J. Hodgson, T. P. Krichbaum, A. Marscher et al
Proceedings of 12th European VLBI Network Symposium and Users Meeting
Conference contribution
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-
Journal article
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
Journal article
2014

Solving the polarization problem in ALMA-VLBI observations

Ivan Marti-Vidal, John Conway, Michael Lindqvist et al
Proceedings of Science. Vol. Part F113821, p. Artno: 034-
Conference contribution
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-
Journal article
2014

SiO masers from AGB stars in the vibrationally excited v=1, v=2, and v=3 states

J. F. Desmurs, V. Bujarrabal, Michael Lindqvist et al
Astronomy and Astrophysics. Vol. 565
Journal article
2014

Present status and technical directions of the EVN

Michael Lindqvist, A Szomoru
Proceedings of Science. 12th European VLBI Network Symposium and Users Meeting, EVN 2014 ; Cagliari; Italy; 7 October 2014 through 10 October 2014. Vol. Part F113821, p. 031-
Conference contribution
2014

DBBC3 development

G. Tuccari, W. Alef, A. Bertarini et al
12th European VLBI Network Symposium and Users Meeting, EVN 2014, Cagliari, Italy, 7-10 October 2014
Paper in proceedings
2013

Wide bandwidth integrated 1-4 GHz feed development for VLBI and SKA

J. Geralt bij de Vaate, Miroslav Pantaleev, Marianna Ivashina et al
Proceedings of Science, 11th European VLBI Network Symposium & Users Meeting
Conference poster
2013

SiO v=3 J=1-0 maser emission from AGB stars

J.F. Desmurs, V. Bujarrabal, Michael Lindqvist et al
Proceedings of Science, 11th European VLBI Network Symposium & Users Meeting
Conference contribution
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
Conference contribution
2013

DBBC3: VLBI at 32 Gbits per second

W. Alef, G. Tuccari, S. Buttaccio et al
Proceedings of Science, 11th European VLBI Network Symposium & Users Meeting
Conference poster
2013

From tape reel to intercontinental lightpaths: Technical developments in the EVN

A Szomoru, Michael Lindqvist
IEEE AFRICON Conference, p. Article no. 6757823-
Paper in proceedings
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-
Journal article
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
Journal article
2013

The latest results from the global mm VLBI array

J. Hodgson, T.P. Krichbaum, A. Marscher et al
Proceedings of Science, 11th European VLBI Network Symposium & Users Meeting
Conference poster
2012

On the calibration of full-polarization 86GHz global VLBI observations

Ivan Marti-Vidal, T. P. Krichbaum, A. Marscher et al
Astronomy and Astrophysics. Vol. 542, p. A107-
Journal article
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
Journal article
2012

Preliminary results on SiO v=3 J=1−0 maser emission from AGB stars

J. F. Desmurs, V. Bujarrabal, Michael Lindqvist et al
Proceedings of the International Astronomical Union. Vol. 8 (S287), p. 252 - 253
Conference contribution
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-
Journal article
2009

e-VLBI related activities at Onsala Space Observatory

Simon Casey, Rüdiger Haas, Michael Lindqvist et al
Proceedings of the 8th International e-VLBI Workshop. 22-26 June 2009. Madrid, Spain
Paper in proceedings
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
Conference poster
2008

e-VLBI observations of SS 433 in outburst

V. Tudose, Z. Paragi, S. Trushkin et al
The Astronomer's Telegram, p. 1836-
Magazine article
2007

Radio and X-Ray Monitoring of SS433

Z. Paragi, S. Chakrabarti, S. Pal et al
Revista Mexicana de Astronomía y Astrofísica. Vol. 27, p. 222-224
Conference poster
2007

Mapping 12CO J=2-1 and 1-0 Line Emission in CSEs around AGB and Early Post-AGB Stars

A. Castro-Carrizo, R. Neri, Michael Winters 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. 199-204
Conference contribution
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
Journal article
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
Conference contribution
2006

Odin spectral line observations of Sgr A and Sgr B2 at submm wavelengths and in the 118-GHz band

Aa. Sandqvist, Per Bergman, P. Bernath et al
Journal of Physics: Conference Series. Vol. 54, p. 72-76
Conference poster
2005

Properties of detached shells around carbon stars. Evidence of interacting winds

F.L. Schöier, Michael Lindqvist, H. Olofsson
Astronomy and Astrophysics. Vol. 436, p. 633-646
Journal article
2004

Probing the inner wind of AGB stars: Interferometric observations of SiO millimetre line emission from the oxygen-rich stars R Dor and L2 Pup

F.L. Schöier, H. Olofsson, T. Wong et al
Astronomy & Astrophysics. Vol. 422, p. 651-663
Journal article

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Showing 1 research projects

2018–2021

Development Study for the Atacama Large Millimeter/Submillimeter Array (ALMA) - High-cadence imaging of the Sun

Michael Lindqvist Onsala Space Observatory, Observation Support
European Southern Observatory (ESO)

There might be more projects where Michael Lindqvist participates, but you have to be logged in as a Chalmers employee to see them.