Cathy Horellou

Biträdande professor at Space, Earth and Environment, Astronomy and Plasmaphysics, Extragalactic Astrophysics

Cathy works on galaxies and clusters of galaxies. She is interested in clusters as such, but also as cosmological probes. Her expertise is in the submm-to-radio part of the electromagnetic spectrum. Such observations reveal the physical conditions of galaxies and of the intra-cluster plasma. She also has a strong interest in theory and modeling - see her recent paper on helical magnetic fields. Since April 2014 Cathy is the Director of the Master's program in Physics and Astronomy at Chalmers and of the corresponding Master's program in Physics at Gothenburg University.

Source: chalmers.se

Projects

2010–2010

Arrays of Ultrasensitive Cold-Electron Bolometers for High-Performance Cosmology Instruments

Cathy Horellou Radio Astronomy and Astrophysics
Swedish National Space Board

2010–2013

Galaxy clusters, submillimeter galaxies and cosmology with APEX

Cathy Horellou Radio Astronomy and Astrophysics
Swedish Research Council (VR)

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

Publications

2017

The XXL survey: First results and future

M. Pierre, C. Adami, M. Birkinshaw et al
Astronomical Notes - Astronomische Nachrichten. Vol. 338 (2-3), p. 334-341
Scientific journal article - peer reviewed
2017

The LOFAR Two-metre Sky Survey: I. Survey description and preliminary data release

T. W. Shimwell, H. J A Röttgering, P. N. Best et al
Astronomy and Astrophysics. Vol. 598, p. Art no A104-
Scientific journal article - peer reviewed
2017

Faraday tomography of the local interstellar medium with LOFAR: Galactic foregrounds towards IC 342∗

C.L. Van Eck, M. Haverkorn, M.I.R. Alves et al
Astronomy and Astrophysics. Vol. 597, p. A98
Scientific journal article - peer reviewed
2016

Subarcsecond international LOFAR radio images of Arp 220 at 150 MHz: A kpc-scale star forming disk surrounding nuclei with shocked outflows

Eskil Varenius, John Conway, Ivan Marti-Vidal et al
Astronomy and Astrophysics. Vol. 593, p. A86
Scientific journal article - peer reviewed
2016

The XXL Survey II. The bright cluster sample: catalogue and luminosity function

F. Pacaud, N. Clerc, P. A. Giles et al
Astronomy and Astrophysics. Vol. 592
Scientific journal article - peer reviewed
2016

The XXL Survey I. Scientific motivations - XMM-Newton observing plan - Follow-up observations and simulation programme

M. Pierre, F. Pacaud, C. Adami et al
Astronomy and Astrophysics. Vol. 592
Scientific journal article - peer reviewed
2016

The XXL Survey IX. Optical overdensity and radio continuum analysis of a supercluster at z=0.43

N. Baran, V. Smolcic, D. Milakovic et al
Astronomy and Astrophysics. Vol. 592
Scientific journal article - peer reviewed
2016

The XXL Survey VIII. MUSE characterisation of intracluster light in a z similar to 0.53 cluster of galaxies

C. Adami, E. Pompei, T. Sadibekova et al
Astronomy & Astrophysics. Vol. 592 (A7)
Scientific journal article - peer reviewed
2016

The XXL Survey VI. The 1000 brightest X-ray point sources

S. Fotopoulou, F. Pacaud, S. Paltani et al
Astronomy & Astrophysics. Vol. 592 (A5)
Scientific journal article - peer reviewed
2016

Mid-infrared dust in two nearby radio galaxies, NGC 1316 (Fornax A) and NGC 612 (PKS 0131-36)

B. D. Asabere, Cathy Horellou, T. H. Jarrett et al
Astronomy & Astrophysics. Vol. 592 (A20), p. 1-16
Scientific journal article - peer reviewed
2016

Galaxy cluster scaling relations measured with APEX-SZ

A. N. Bender, J. Kennedy, P. A. R. Ade et al
Monthly notices of the Royal Astronomical Society. Vol. 460 (4), p. 3432-3446
Scientific journal article - peer reviewed
2016

The XXL Survey: XI. ATCA 2.1 GHz continuum observations?

Vernesa Smolčić, Jacinta Delhaize, Minh Huynh et al
Astronomy and Astrophysics. Vol. 592 (Art. no A10)
Scientific journal article - peer reviewed
2016

Magnetic fields in ring galaxies

D. Moss, E. Mikhailov, O. Silchenko et al
Astronomy and Astrophysics. Vol. 592, p. A44
Scientific journal article - peer reviewed
2016

The XXL Survey: XII. Optical spectroscopy of X-ray-selected clusters and the frequency of AGN in superclusters

E. Koulouridis, B. Poggianti, B. Altieri et al
Astronomy and Astrophysics. Vol. 592, p. Art. no. A11
Scientific journal article - peer reviewed
2016

Using rotation measure grids to detect cosmological magnetic fields: A Bayesian approach

V. Vacca, N. Oppermann, T. Enßlin et al
Astronomy and Astrophysics. Vol. 591, p. Art. no. A13
Scientific journal article - peer reviewed
2016

A plethora of diffuse steep spectrum radio sources in Abell 2034 revealed by LOFAR

T. W. Shimwell, J. Luckin, M. Bruggen et al
Monthly notices of the Royal Astronomical Society. Vol. 459 (1), p. 277-290
Scientific journal article - peer reviewed
2016

LOFAR Facet Calibration

R. J. van Weeren, W. L. Williams, M. J. Hardcastle et al
Astrophysical Journal Supplement Series. Vol. 223 (1)
Scientific journal article - peer reviewed
2016

LOFAR, VLA, AND CHANDRA OBSERVATIONS OF THE TOOTHBRUSH GALAXY CLUSTER

R. J. van Weeren, G. Brunetti, M. Bruggen et al
Astrophysical Journal. Vol. 818 (2)
Scientific journal article - peer reviewed
2015

AGN duty cycle estimates for the ultra-steep spectrum radio relic VLSS J1431.8+1331

A. Shulevski, R. Morganti, P. D. Barthel et al
Astronomy & Astrophysics. Vol. 583, p. A89
Scientific journal article - peer reviewed
2015

Statistical methods for the analysis of rotation measure grids in large scale structures in the SKA era

V. Vacca, N. Oppermann, T. Ensslin et al
Proceedings of Advancing Astrophysics with the Square Kilometre Array (AASKA14). 9 -13 June, 2014. Giardini Naxos, Italy.
Conference paper - peer reviewed
2015

Magnetic Field Tomography in Nearby Galaxies with the Square Kilometre Array

G. Heald, R. Beck, W.J.G. de Blok et al
Proceedings of Advancing Astrophysics with the Square Kilometre Array (AASKA14). 9 -13 June, 2014. Giardini Naxos, Italy.
Conference paper - peer reviewed
2015

Structure, dynamical impact and origin of magnetic fields in nearby galaxies in the SKA era

R. Beck, D. Bomans, S. Colafrancesco et al
Proceedings of Advancing Astrophysics with the Square Kilometre Array (AASKA14). 9 -13 June, 2014. Giardini Naxos, Italy.
Conference paper - peer reviewed
2015

Radio astronomy in Africa: the case of Ghana

Bernard Duah Asabere, M.J. Gaylard, Cathy Horellou et al
Proceedings of SAIP2014, the 59th Annual Conference of the South African Institute of Physics, edited by Chris Engelbrecht and Steven Karataglidis (University of Johannesburg, 2015), p. 296-301
Conference paper - peer reviewed
2015

Predicted multiply imaged X-ray AGNs in the XXL survey

F. Finet, A. Elyiv, O. Melnyk et al
Monthly notices of the Royal Astronomical Society. Vol. 452 (2), p. 1480-1492
Scientific journal article - peer reviewed
2015

A strong magnetic field in the jet base of a supermassive black hole

Ivan Marti-Vidal, Sebastien Muller, Wouter Vlemmings et al
Science. Vol. 348 (6232), p. 311-314
Scientific journal article - peer reviewed
2015

Subarcsecond international LOFAR radio images of the M82 nucleus at 118 MHz and 154 MHz

Eskil Varenius, John Conway, Ivan Marti-Vidal et al
Astronomy and Astrophysics. Vol. 574, p. Art. no. A114
Scientific journal article - peer reviewed
2014

Discovery of Carbon Radio Recombination Lines in M82

L. K. Morabito, J. B. R. Oonk, F. Salgado et al
Astrophysical Journal Letters. Vol. 795 (2), p. Art. no. L33
Scientific journal article - peer reviewed
2014

The XXL Survey. V. Detection of the Sunyaev-Zel'Dovich Effect of the Redshift 1.9 Galaxy Cluster XLSSU J021744.1-034536 With Carma

A. B. Mantz, Z. Abdulla, J. E. Carlstrom et al
Astrophysical Journal. Vol. 794 (2)
Scientific journal article - peer reviewed
2014

LOFAR LOW-BAND ANTENNA OBSERVATIONS OF THE 3C 295 AND BOOTES FIELDS: SOURCE COUNTS AND ULTRA-STEEP SPECTRUM SOURCES

R. J. van Weeren, W. L. Williams, C. Tasse et al
ASTROPHYSICAL JOURNAL. Vol. 793 (2), p. art. 82
Scientific journal article - peer reviewed
2014

The nature of the low-frequency emission of M 51 First observations of a nearby galaxy with LOFAR

D. D. Mulcahy, A. Horneffer, R. Beck et al
Astronomy and Astrophysics. Vol. 568, p. Article no. A74
Scientific journal article - peer reviewed
2014

Detection of chloronium and measurement of the Cl-35/Cl-37 isotopic ratio at z=0.89 toward PKS 1830-211

Sebastien Muller, John H. Black, M. Guelin et al
Astronomy and Astrophysics. Vol. 566
Scientific journal article - peer reviewed
2014

An ALMA Early Science survey of molecular absorption lines toward PKS 1830-211 Analysis of the absorption profiles

Sebastien Muller, F. Combes, M. Guelin et al
Astronomy and Astrophysics. Vol. 566
Scientific journal article - peer reviewed
2014

Magnetic field tomography, helical magnetic fields and Faraday depolarization

Cathy Horellou, A. Fletcher,
Monthly notices of the Royal Astronomical Society. Vol. 441 (3), p. 2049-2057
Scientific journal article - peer reviewed
2013

Probing the jet base of the blazar PKS 1830-211 from the chromatic variability of its lensed images. Serendipitous ALMA observations of a strong gamma-ray flare

Ivan Marti-Vidal, Sebastien Muller, F Combes et al
Astronomy and Astrophysics. Vol. 558, p. 123
Scientific journal article - peer reviewed
2013

A precise and accurate determination of the cosmic microwave background temperature at z = 0.89

Sebastien Muller, A. Beelen, John H. Black et al
Astronomy and Astrophysics. Vol. 551, p. A109 (pp. 1-13)
Scientific journal article - peer reviewed
2012

APEX-SZ: The Atacama Pathfinder EXperiment Sunyaev-Zel'dovich Instrument

D. Schwan, R. Kneissl, P. Ade et al
The Messenger. Vol. 147, p. 7-12
Scientific journal article - non peer reviewed
2012

Molecular gas and dust in the highly magnified z similar to 2.8 galaxy behind the Bullet Cluster

Daniel Johansson, Cathy Horellou, O. Lopez-Cruz et al
Astronomy and Astrophysics. Vol. 543, p. Article Number: A62 (pp. 1-10)
Scientific journal article - peer reviewed
2012

First LOFAR observations at very low frequencies of cluster-scale non-thermal emission: the case of Abell 2256

R. J. van Weeren, H. J. A. Rottgering, D. A. Rafferty et al
Astronomy and Astrophysics. Vol. 543, p. Article Number: A43
Scientific journal article - peer reviewed
2011

Leve The Big Bang Theory!

Cathy Horellou,
Populär astronomi (3), p. 24-25
Journal article - popular science
2011

APEX Sunyaev-Zeldovich observations of the merging galaxy cluster Abell 2744

Cathy Horellou, Daniel Johansson, A. Koloczek et al
Memorie della Societa Astronomica Italiana. Vol. 82 (668), p. 4
Conference paper - non peer reviewed
2011

Invited Article: Millimeter-wave bolometer array receiver for the Atacama pathfinder experiment Sunyaev-Zel'dovich (APEX-SZ) instrument

D. Schwan, P. A. R. Ade, K. Basu et al
Review of Scientific Instruments. Vol. 82 (9)
Scientific journal article - peer reviewed
2011

CONSTRAINS ON THE QUINTESSENCE FROM OBSERVATIONAL DATA

A. M. Badescu, Cathy Horellou,
Romanian Reports in Physics. Vol. 63 (3), p. 852-861
Scientific journal article - peer reviewed
2011

Magnetic fields and spiral arms in the galaxy M51

A. Fletcher, R. Beck, A. Shukurov et al
Monthly Notices of the Royal Astronomical Society. Vol. 412 (4), p. 2396-2416
Scientific journal article - peer reviewed
2011

A LABOCA survey of submillimeter galaxies behind galaxy clusters

Daniel Johansson, Haukur Sigurdarson, Cathy Horellou et al
Astronomy and Astrophysics. Vol. 527
Scientific journal article - peer reviewed
2010

Non-parametric modeling of the intra-cluster gas using APEX-SZ bolometer imaging data

K. Basu, Y. Y. Zhang, M. W. Sommer et al
Astronomy and Astrophysics. Vol. 519 (Article Number: A29 )
Scientific journal article - peer reviewed
2010

Improving the identification of high-z Herschel sources with position priors and optical/NIR and FIR/mm photometric redshifts

P. G. Perez-Gonzalez, E. Egami, M. Rex et al
Astronomy & Astrophysics. Vol. 518 (Article Number: L15)
Scientific journal article - peer reviewed
2010

The far-infrared/submillimeter properties of galaxies located behind the Bullet cluster

M. Rex, T. D. Rawle, E. Egami et al
Astronomy & Astrophysics. Vol. 518 (Article Number: L13 )
Scientific journal article - peer reviewed
2010

Submillimeter galaxies behind the Bullet cluster (1E 0657-56)

Daniel Johansson, Cathy Horellou, M. W. Sommer et al
Astronomy & Astrophysics. Vol. 514
Scientific journal article - peer reviewed
2009

Multi-frequency imaging of the galaxy cluster Abell 2163 using the Sunyaev-Zel'dovich effect

Martin Nord, K. Basu, P.A.R. Ade et al
Astronomy & Astrophysics. Vol. 506, p. 623-636
Scientific journal article - peer reviewed
2009

Constraints on the High-ell Power Spectrum of Millimeter-Wave Anisotropies from APEX-SZ

C.L. Reichardt, O. Zahn, P.A.R. Ade et al
The Astrophysical Journal. Vol. 701, p. 1958-1964
Scientific journal article - peer reviewed
2008

Sicken attans liten söt antenn!

Cathy Horellou, Daniel Johansson,
Populär Astronomi. Vol. 9 (4), p. 28-29
Scientific journal article - peer reviewed
2008

Stars and gas in the Medusa merger

E. Manthey, S. Hüttemeister, Susanne Aalto et al
Astronomy & Astrophysics. Vol. 490, p. 975-987
Scientific journal article - peer reviewed
2007

The gas content of moderate-luminosity mergers

E. Manthey, S. Hüttemeister, Susanne Aalto et al
New Astronomy Reviews. Vol. 51 (1-2), p. 71-74
Scientific journal article - peer reviewed
2007

Stars and gas in the very large interacting galaxy NGC 6872

Cathy Horellou, B. Koribalski,
Astronomy & Astrophysics. Vol. 464, p. 155-165
Scientific journal article - peer reviewed
2006

Analysis of spiral arms using anisotropic wavelets: gas, dust and magnetic fields in M51

I. Patrikeev, A. Fletcher, R. Stepanov et al
Astronomy & Astrophysics. Vol. 458, p. 441-452
Scientific journal article - peer reviewed
2005

Radioastronomy for students

Christer Andersson, Cathy Horellou, Magne Hagström et al
International Amateur-Professional Photoelectric Photometry Communications, Proceedings of `Global Hands-On Universe 2004", St. Petersburg, Russia, July 2004. Vol. 100, p. 49-54
Conference paper - non peer reviewed
2005

Anisotropic wavelet analysis of spiral arms and magnetic fields in the galaxy M51

I. Patrickeyev, A. Fletcher, R. Beck et al
In Proceedings of the conf. “The Magnetized Plasma in Galaxy Evolution”, held in Kraków, Poland, Sept. 27 - Oct. 1, 2004, eds. K Chyzy, K. Otmianowska-Mazur, M. Soida, R.-J. Dettmar, Jagiellonian University, Kraków 2005, p. 130-135
Conference paper - non peer reviewed
2005

The signature of dark energy on the Local Hubble flow

A. Maccio, F. Governato, Cathy Horellou et al
Monthly Notices of the RAS. Vol. 359, p. 941
Scientific journal article - peer reviewed
2005

Probing the cosmic microwave background temperature using the Sunyaev-Zeldovich effect

Cathy Horellou, M. Nord, D. Johansson et al
Astronomy & Astrophysics. Vol. 441, p. 435-442
Scientific journal article - peer reviewed
2005

Dark Energy and the Evolution of Spherical Overdensities

Cathy Horellou, J. Berge,
Mon. Not. R. Astron. Soc.. Vol. 360, p. 1393-1400
Scientific journal article - peer reviewed
2004

Dark Energy and the Evolution of Spherical Overdensities

Cathy Horellou, J. Berge,
Proceedings of XXXIXth Rencontres de Moriond, La Thuile, Italy, Mar. 28-Apr. 4, 2004, eds. Y. Giraud-Héraud, J. Trân Thanh Vân, p. 155
Conference paper - peer reviewed
2004

Gas and Star Formation in the Interacting Galaxies NGC 6872/IC 4970

Cathy Horellou, B. Koribalski,
in Proceedings of "The Neutral ISM in Starburst Galaxies", Marstrand, June 2003, eds. Aalto S., Huettemeister S., Pedlar A., Astronomical Society of the Pacific Conf. Series, San Francisco, p. 69-72
Conference paper - peer reviewed
2004

A wavelet add-on code for new-generation N-body simulations and data de-noising (JOFILUREN)

Alessandro Romeo, Cathy Horellou, Jöran Bergh et al
Monthly notices of the Royal Astronomical Society. Vol. 354 (4), p. 1208-1222
Scientific journal article - peer reviewed
2004

Assessing the galaxy population out to z~2 using the Hubble Deep Field South

Theresa Wiegert, Duilia de Mello, Cathy Horellou et al
Astronomy & Astrophysics. Vol. 426, p. 455-462
Scientific journal article - peer reviewed
2004

Magnetic Fields and Spiral Structure

A. Fletcher, R. Beck, E. Berkhuijsen et al
Proceedings of "How does the Galaxy Work?", Granada, Spain, June 2003, eds E.J. Alfaro, E. Perez, J. Franco, Astrophys. and Sp. Sci. Library, Springer-Verlag, p. 315
Conference paper - peer reviewed
2004

Stars and Gas in the Large Interacting Galaxy NGC 6872

Cathy Horellou, B.S. Koribalski,
IAU-symposium nr 217, 2003 Sydney, eds. P.-A. Duc, J. Braine, E. Brinks, p. p. 422
Conference paper - peer reviewed
2003

N-body simulations with two-orders-of-magnitude higher performance using wavelets

Alessandro Romeo, Cathy Horellou, Jöran Bergh et al
Monthly notices of the Royal Astronomical Society. Vol. 342 (2), p. 337-344
Scientific journal article - peer reviewed