Results 51 to 60 of about 7,925 (170)

Galaxy And Mass Assembly: resolving the role of environment in galaxy evolution [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
We present observations of 18 galaxies from the Galaxy And Mass Assembly (GAMA) survey made with the SPIRAL optical integral field unit (IFU) on the Anglo-Australian Telescope. The galaxies are selected to have a narrow range in stellar mass (6 × 109 < M* < 2 × 1010 M⊙) in order to focus on the effects of environment.
Brough, S., Croom, S., Sharp, R., Hopkins, A. M., Taylor, E. N., Baldry, I. K., Gunawardhana, M. L. P., Liske, J., Norberg, P., Robotham, A. S. G., Bauer, A. E., Bland-Hawthorn, J., Colless, M., Foster, C., Kelvin, L. S., Lara-Lopez, M. A., López-Sánchez, Á. R., Loveday, J., Owers, M., Pimbblet, K. A., Prescott, M.   +20 more
openaire   +4 more sources

The SAGA Survey. VI. The Size–Mass Relation for Low-mass Galaxies Across Environments

The Astrophysical Journal
We investigate how Milky Way (MW)–like environments influence the sizes and structural properties of low-mass galaxies by comparing satellites of MW analogs from the Satellites Around Galactic Analogs (SAGA) Survey with two control samples: an ...
Yasmeen Asali, Marla Geha, Erin Kado-Fong, Yao-Yuan Mao, Risa H. Wechsler, Mithi A. C. de los Reyes, Imad Pasha, Nitya Kallivayalil, Ethan O. Nadler, Erik J. Tollerud, Yunchong Wang, Benjamin Weiner, John F. Wu   +12 more
doaj   +1 more source

The Arecibo Galaxy Environment Survey IX: the isolated galaxy sample [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
We have used the Arecibo L-band Feed Array to map three regions, each of 5 square degrees, around the isolated galaxies NGC 1156, UGC 2082, and NGC 5523. In the vicinity of these galaxies we have detected two dwarf companions: one near UGC 2082, previously discovered by ALFALFA, and one near NGC 1156, discovered by this project and reported in an ...
Minchin, R. F., Auld, R., Davies, J. I., Karachentsev, I. D., Keenan, O. C., Momjian, E., Rodriguez, R., Taber, T., Taylor, R.   +8 more
openaire   +2 more sources

The Importance of Gas Starvation in Driving Satellite Quenching in Galaxy Groups at z ~ 0.8

The Astrophysical Journal
We present results from a Keck/DEIMOS survey to study satellite quenching in group environments at z  ~ 0.8 within the Extended Groth Strip (EGS). We target 11 groups in the EGS with extended X-ray emission. We obtain high-quality spectroscopic redshifts
Devontae C. Baxter, Sean P. Fillingham, Alison L. Coil, Michael C. Cooper   +3 more
doaj   +1 more source

VERTICO and IllustrisTNG: The Spatially Resolved Effects of Environment on Galactic Gas

The Astrophysical Journal Letters, 2023
It has been shown in previous publications that the TNG100 simulation quantitatively reproduces the observed reduction in each of the total atomic and total molecular hydrogen gas for galaxies within massive halos, i.e., dense environments.
Adam R. H. Stevens, Toby Brown, Benedikt Diemer, Annalisa Pillepich, Lars Hernquist, Dylan Nelson, Yannick M. Bahé, Alessandro Boselli, Timothy A. Davis, Pascal J. Elahi, Sara L. Ellison, María J. Jiménez-Donaire, Ian D. Roberts, Kristine Spekkens, Vicente Villanueva, Adam B. Watts, Christine D. Wilson, Nikki Zabel   +17 more
doaj   +1 more source

Why Are Some Optically Red Spirals Near-ultraviolet− r Blue?

The Astrophysical Journal
To understand the complicated formation processes of disk galaxies, we carry out a comparative study of near-ultraviolet (NUV)− r blue and red spiral galaxies drawn from a parent sample of u−r red spirals with M _*  > 10 ^10.5 M _⊙ at 0.02 
Rui Guo, Cai-Na Hao, Xiaoyang Xia, Yong Shi, Lan Wang   +4 more
doaj   +1 more source

Denser Environments Cultivate Larger Galaxies: A Comprehensive Study beyond the Local Universe with 3 Million Hyper Suprime-Cam Galaxies

The Astrophysical Journal
The relationship between galaxy size and environment has remained enigmatic, with over a decade of conflicting results. We present one of the first comprehensive studies of the variation of galaxy radius with environment beyond the local Universe and ...
Aritra Ghosh, C. Megan Urry, Meredith C. Powell, Rhythm Shimakawa, Frank C. van den Bosch, Daisuke Nagai, Kaustav Mitra, Andrew J. Connolly   +7 more
doaj   +1 more source

The Environment of ``E+A'' Galaxies

The Astrophysical Journal, 1996
39 uuencoded, compressed pages (except Fig 1), complete preprint at ftp://ociw.edu/pub/aiz/eplusa.ps, ApJ ...
Zabludoff, A. I., Zaritsky, D., Lin, H., Tucker, D., Hashimoto, Y., Shectman, S. A., Oemler, A., Kirshner, R. P.   +7 more
openaire   +2 more sources

Radio galaxies and their environment [PDF]

, 1993
The relationships between radio galaxies and their environment are varied, complex, and evolve with cosmic epoch. Basic questions are what role the environment plays in triggering and fuelling (radio) galaxy activity what the effects of this activity are on its environment, and how radio galaxies and environment evolve. Clearly, this could be the topic
openaire   +1 more source

Galaxy Clusters from the DESI Legacy Imaging Surveys. II. Environmental Effects on the Size–Mass Relation

The Astrophysical Journal
To investigate the environmental effects on the growth of galaxies, we study the size–mass relation across a broad range of environments with a vast sample of approximately 32 million galaxies at z < 0.5 from the DESI Legacy Imaging Surveys.
Zhaobin Chen, Yizhou Gu, Hu Zou, Qirong Yuan   +3 more
doaj   +1 more source