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Related papers: Cold gas in group-dominant elliptical galaxies

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We report on the discovery of cool gas inflows towards three star-forming galaxies at $\left<z\right>\sim$ 2.30. Analysis of Keck Low-Resolution Imaging Spectrometer spectroscopy reveals redshifted low-ionisation interstellar (LIS) metal…

12CO 1-0,2-1,4-3,7-6, and 13CO 1-0, 2-1, and 3-2 line was mapped with angular resolutions of 13" - 22" toward the nuclear region of starburst galaxy M82. The difference of lobe spacings in submillimeter (~15") and millimeter (~26") lines…

We present the Evolution of molecular Gas in Normal Galaxies (EGNoG) survey, an observational study of molecular gas in 31 star-forming galaxies from z=0.05 to z=0.5, with stellar masses of (4-30)x10^10 M_Sun and star formation rates of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Amber Bauermeister , Leo Blitz , Alberto D. Bolatto , Martin Bureau , Adam Leroy , Eve Ostriker , Peter J. Teuben , Tony Wong , Melvyn C. H. Wright

We describe the evolution of hot interstellar gas in a family of low luminosity elliptical galaxies all having $M_B = -20$ but with different degrees of flattening (E0, E2, and E6) caused by rotation. The interstellar gas is furnished by…

Astrophysics · Physics 2009-10-30 Fabrizio Brighenti , William G. Mathews

Lenticular galaxies remain remarkably mysterious as a class. Observations to date have not led to any broad consensus about their origins, properties and evolution, though they are often thought to have formed in one big burst of star…

Astrophysics · Physics 2009-11-07 Gary A. Welch , Leslie J. Sage

We study the impact of relatively weak AGN feedback on the interstellar medium of intermediate and massive elliptical galaxies. We find that the AGN activity, while globally heating the ISM, naturally stimulates some degree of hot gas…

Astrophysics of Galaxies · Physics 2015-06-23 Milena Valentini , Fabrizio Brighenti

A study of the gas content in 1038 interacting galaxies, essentially selected from Arp, Arp and Madore, Vorontsov-Velyaminov catalogues and some of the published literature, is presented here. The data on the interstellar medium have been…

Astrophysics · Physics 2009-11-10 V. Casasola , D. Bettoni , G. Galletta

Recent efforts to characterise the molecular gas content of brightest cluster galaxies (BCGs) at intermediate redshift have revealed a sub-population of gas-rich systems, whose star formation activity is likely influenced by environmental…

We present fluxes in both neutral carbon [CI] lines at the centers of 76 galaxies with FIR luminosities between 10^{9} and 10^{12} L(o) obtained with Herschel-SPIRE and with ground-based facilities, along with the J=7-6, J=4-3, J=2-1 12CO…

Astrophysics of Galaxies · Physics 2015-06-11 F. P. Israel , M. J. F. Rosenberg , P. van der Werf

We study the distribution and kinematics of the cool circumgalactic medium (CGM) of emission line galaxies (ELGs) traced by metal absorption lines. Using about 200,000 ELGs from SDSS-IV eBOSS and half a million background quasars from SDSS,…

Astrophysics of Galaxies · Physics 2018-10-17 Ting-Wen Lan , Houjun Mo

We report a survey for molecular gas in nearby powerful radio galaxies. Eight of the eighteen radio galaxies observed were detected with molecular masses in the range 10^7--10^9 Msun, similar to the same survey we performed towards 3C radio…

Astrophysics · Physics 2007-05-23 Stephane Leon , Jeremy Lim , Francoise Combes , Dinh-V-Trung

We report a survey of molecular gas in galaxies in the XMMXCS J2215.9-1738 cluster at $z=1.46$. We have detected emission lines from 17 galaxies within a radius of $R_{200}$ from the cluster center, in Band 3 data of the Atacama Large…

Context: We investigated the molecular gas associated with 6.7 GHz methanol masers throughout the Galaxy using a J=1-0 transition of the CO isotopologues. Methods:Using the 13.7-meter telescope at the Purple Mountain Observatory (PMO), we…

Solar and Stellar Astrophysics · Physics 2014-09-05 Zhiyuan Ren , Yuefang Wu , Tie Liu , Lixin Li , Di Li , Binggang Ju

We have performed a multi-transition CO study of the centers of seven double-barred galaxies that exhibit a variety of molecular gas morphologies to determine if the molecular gas properties are correlated with the nuclear morphology and…

Astrophysics · Physics 2009-11-07 Glen Petitpas , Christine Wilson

We present an analysis of the neutral hydrogen and stellar populations of elliptical galaxies in the Tal et al. (2009) sample. Our aim is to test their conclusion that the continuing assembly of these galaxies at z~0 is essentially gas-free…

Cosmology and Nongalactic Astrophysics · Physics 2009-12-16 Paolo Serra , Tom Oosterloo

Near-IR spectra for a sample of 31 elliptical galaxies in the Coma cluster are obtained. The galaxies are selected to be ellipticals (no lenticulars), with a large spatial distribution, covering both the core and outskirt of the cluster…

Astrophysics · Physics 2009-10-31 Bahram Mobasher , Phil. A. James

We present the final data release of the APEX low-redshift legacy survey for molecular gas (ALLSMOG), comprising CO(2-1) emission line observations of 88 nearby, low-mass (10^8.5<M* [M_Sun]<10^10) star-forming galaxies carried out with the…

We present the equivalent width and column density measurements for low and intermediate ionization states of the circumgalactic medium (CGM) surrounding 44 low-z, L ~ L* galaxies drawn from the COS-Halos survey. These measurements are…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Jessica Werk , J. Xavier Prochaska , Christopher Thom , Jason Tumlinson , Todd Tripp , John O'Meara , Molly Peeples

We present new CO(2-1) observations of a representative sample of 24 local (z$<$0.02) luminous infrared galaxies (LIRGs) obtained at high spatial resolution ($<$100 pc) from ALMA. We derive the effective radii of the CO(2-1) and the 1.3 mm…

Massive molecular clouds have been discovered in massive elliptical galaxies at the center of galaxy clusters. Some of this cold gas is expected to flow in the central supermassive black holes and activate galactic nucleus (AGN) feedback.…

Astrophysics of Galaxies · Physics 2023-08-09 Yutaka Fujita , Takuma Izumi , Nozomu Kawakatu , Hiroshi Nagai , Ryo Hirasawa , Yu Ikeda
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