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The relation between velocity dispersion and mass in simulated clusters of galaxies: dependence on the tracer and the baryonic physics

E. Munari, A. Biviano, S. Borgani, G. Murante and D. Fabjan.

in Monthly Notices of the Royal Astronomical Society

April 2013; p ublished online February 2013 .

Journal Article. Subjects: Astronomy and Astrophysics. 7574 words.

We present an analysis of the relation between the masses of cluster- and group-sized haloes, extracted from Λ cold dark matter (ΛCDM) cosmological N-body and hydrodynamic simulations, and...

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Balancing mass and momentum in the Local Group

J. D. Diaz, S. E. Koposov, M. Irwin, V. Belokurov and N. W. Evans.

in Monthly Notices of the Royal Astronomical Society

P ublished online July 2014 .

Journal Article. Subjects: Astronomy and Astrophysics. 14494 words.

In the rest frame of the Local Group (LG), the total momentum of the Milky Way (MW) and Andromeda (M31) should balance to zero. We use this fact to constrain new solutions for the solar...

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Sunyaev–Zel’dovich observation of the Bullet-like cluster Abell 2146 with the Arcminute Microkelvin Imager*

Carmen Rodríguez-Gonzálvez, Malak Olamaie, Matthew L. Davies, Andy C. Fabian, Farhan Feroz, Thomas M. O. Franzen, Keith J. B. Grainge, Michael P. Hobson, Natasha Hurley-Walker, Anthony N. Lasenby, Guy G. Pooley, Helen R. Russell, Jeremy S. Sanders, Richard D. E. Saunders, Anna M. M. Scaife, Michel P. Schammel, Paul F. Scott, Timothy W. Shimwell, David J. Titterington, Elizabeth M. Waldram and Jonathan T. L. Zwart.

in Monthly Notices of the Royal Astronomical Society

July 2011; p ublished online July 2011 .

Journal Article. Subjects: Astronomy and Astrophysics. 8725 words.

We present 13.9–18.2 GHz observations of the Sunyaev–Zel’dovich (SZ) effect towards Abell 2146 using the Arcminute Microkelvin Imager (AMI). The cluster is detected with a peak...

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Accurate masses for dispersion-supported galaxies

Joe Wolf, Gregory D. Martinez, James S. Bullock, Manoj Kaplinghat, Marla Geha, Ricardo R. Muñoz, Joshua D. Simon and Frank F. Avedo.

in Monthly Notices of the Royal Astronomical Society

August 2010; p ublished online July 2010 .

Journal Article. Subjects: Astronomy and Astrophysics. 14235 words.

We derive an accurate mass estimator for dispersion-supported stellar systems and demonstrate its validity by analysing resolved line-of-sight velocity data for globular clusters, dwarf...

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Sagittarius A Molecular Cloud Complex in H13CO+ and Thermal SiO Emission Lines

Masato Tsuboi, Ken-ichi Tadaki, Atsushi Miyazaki and Toshihiro Handa.

in Publications of the Astronomical Society of Japan

August 2011; p ublished online August 2011 .

Journal Article. Subjects: Galaxies; Interstellar Medium. 11876 words.

We present results of a high-resolution wide-field mapping observation of the Sagittarius A (Sgr A) molecular cloud complex in H[math]CO[math] [math] [math] 1–0 and thermal SiO [math]...

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The luminosity and stellar mass Fundamental Plane of early-type galaxies

Joseph B. Hyde and Mariangela Bernardi.

in Monthly Notices of the Royal Astronomical Society

June 2009; p ublished online June 2009 .

Journal Article. Subjects: Astronomy and Astrophysics. 9180 words.

From a sample of ∼50 000 early-type galaxies from the Sloan Digital Sky Survey, we measured the traditional Fundamental Plane in the g, r, i and z bands. We then replaced luminosity with...

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Parametrization effects in the analysis of AMI Sunyaev–Zel’dovich observations*

Malak Olamaie, Carmen Rodríguez-Gonzálvez, Matthew L. Davies, Farhan Feroz, Thomas M. O. Franzen, Keith J. B. Grainge, Michael P. Hobson, Natasha Hurley-Walker, Anthony N. Lasenby, Guy G. Pooley, Richard D. E. Saunders, Anna M. M. Scaife, Michel Schammel, Paul F. Scott, Timothy W. Shimwell, David J. Titterington, Elizabeth M. Waldram and Jonathan T. L. Zwart.

in Monthly Notices of the Royal Astronomical Society

April 2012; p ublished online March 2012 .

Journal Article. Subjects: Astronomy and Astrophysics. 11478 words.

Most Sunyaev–Zel’dovich (SZ) and X-ray analyses of galaxy clusters try to constrain the cluster total mass (M T(r)) and/or gas mass (M g(r)) using parametrized...

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