R
Ruben Sanchez-Janssen
Researcher at European Southern Observatory
Publications - 44
Citations - 1428
Ruben Sanchez-Janssen is an academic researcher from European Southern Observatory. The author has contributed to research in topics: Galaxy & Dwarf galaxy. The author has an hindex of 23, co-authored 44 publications receiving 1326 citations. Previous affiliations of Ruben Sanchez-Janssen include Science and Technology Facilities Council & Spanish National Research Council.
Papers
More filters
Journal ArticleDOI
The Importance of Major Mergers in the Build Up of Stellar Mass in Brightest Cluster Galaxies at z = 1
C. Lidman,Gabriela Iacobuta,Gabriela Iacobuta,Amanda E. Bauer,L. F. Barrientos,P. Cerulo,Warrick J. Couch,L. Delaye,R. Demarco,Erica Ellingson,A. J. Faloon,David G. Gilbank,Marc Huertas-Company,Simona Mei,Joshua Meyers,Adam Muzzin,Allison Noble,J. Nantais,A. Rettura,Piero Rosati,Ruben Sanchez-Janssen,V. Strazzullo,Tracy Webb,Gillian Wilson,Renbin Yan,Howard Yee +25 more
TL;DR: In this article, the authors search for observational evidence that major mergers do play a significant role in the build up of stellar mass in distant galaxy clusters, and they find a major merger rate of 0.38 ± 0.14 mergers per Gyr at z ∼ 1.2.
Journal ArticleDOI
Larger sizes of massive quiescent early-type galaxies in clusters than in the field at 0.8 < z < 1.5
Lauriane Delaye,Lauriane Delaye,Marc Huertas-Company,Simona Mei,C. Lidman,R. Licitra,Andrew B. Newman,A. Raichoor,Francesco Shankar,F. Barrientos,Mariangela Bernardi,P. Cerulo,Warrick J. Couch,R. Demarco,Roberto Munoz,Ruben Sanchez-Janssen,Masayuki Tanaka +16 more
TL;DR: In this article, the authors analyzed the mass-size relation of ∼400 quiescent massive ETGs hosted by massive clusters at 0.8 < z < 1.5, compared to those found in the field at the same epoch.
Journal ArticleDOI
3D-HST GRISM SPECTROSCOPY OF A GRAVITATIONALLY LENSED, LOW-METALLICITY STARBURST GALAXY AT z = 1.847
Gabriel B. Brammer,Ruben Sanchez-Janssen,Ivo Labbé,Elisabete da Cunha,Dawn K. Erb,Marijn Franx,Mattia Fumagalli,Britt Lundgren,Danilo Marchesini,Ivelina Momcheva,Erica J. Nelson,Shannon G. Patel,Ryan Quadri,Hans-Walter Rix,Rosalind E. Skelton,Kasper B. Schmidt,Arjen van der Wel,Pieter G. van Dokkum,David Wake,Katherine E. Whitaker +19 more
TL;DR: In this article, the 3D-HST WFC3/G141 near-infrared spectrum of the lens reveals the source of this discrepancy to be extremely strong [O III] λ5007 and Hβ emission lines with rest frame equivalent widths of 2000 ± 100 and 520 ± 40 A, respectively.
Journal ArticleDOI
The impact of galaxy harassment on the globular cluster systems of early-type cluster dwarf galaxies
Rory Smith,Ruben Sanchez-Janssen,Michael Fellhauer,Thomas H. Puzia,J. A. L. Aguerri,J. A. L. Aguerri,J. P. Farias +6 more
TL;DR: In this paper, the authors investigate the impact of the harassment on the dynamics of GCs surrounding early type cluster dwarfs, using numerical simulations, and find that the dynamical behaviour of the GCS is strongly influenced by the fraction of bound dark matter remaining in the galaxy.
Journal ArticleDOI
Which Galaxies Host Bars and Disks? A Study of the Coma Cluster
Jairo Méndez-Abreu,Jairo Méndez-Abreu,Ruben Sanchez-Janssen,J. A. L. Aguerri,J. A. L. Aguerri +4 more
TL;DR: In this article, a study of the bar fraction in the Coma Cluster galaxies based on a sample of ∼190 galaxies selected from the Sloan Digital Sky Survey Data Release 6 and observed with the Hubble Space Telescope (HST) Advanced Camera for Survey (ACS).