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We try to constrain the gas inflow and outflow rate of star-forming galaxies at $z\sim1.4$ by employing a simple analytic model for the chemical evolution of galaxies. The sample is constructed based on a large near-infrared (NIR)…

Astrophysics of Galaxies · Physics 2015-06-23 Kiyoto Yabe , Kouji Ohta , Masayuki Akiyama , Fumihide Iwamuro , Naoyuki Tamura , Suraphong Yuma , Gavin Dalton , Ian Lewis

The high ionization-state ions trace the hot gases in the universe, of which gaseous halos around galaxies are a major contributor. Following Qu & Bregman (2018), we calculate the gaseous halo contribution to the observed column density…

Astrophysics of Galaxies · Physics 2018-08-01 Zhijie Qu , Joel N. Bregman

We obtained medium-resolution ultraviolet (UV) spectra between 1150 and 1450 Angstroms of the four UV-bright, infrared (IR)-luminous starburst galaxies IRAS F08339+6517, NGC 3256, NGC 6090, and NGC 7552 using the Cosmic Origins Spectrograph…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Claus Leitherer , Rupali Chandar , Christy Tremonti , Aida Wofford , Daniel Schaerer

The fraction of ionizing photons that escape high-redshift galaxies sensitively determines whether galaxies reionized the early universe. However, this escape fraction cannot be measured from high-redshift galaxies because the opacity of…

Astrophysics of Galaxies · Physics 2018-08-08 J. Chisholm , S. Gazagnes , D. Schaerer , A. Verhamme , J. R. Rigby , M. Bayliss , K. Sharon , M. Gladders , H. Dahle

We present a detailed study of the kinematics of 19 QSO2s in the range 0.3<z<0.41 and [OIII] luminosities $L_{[OIII]} > 10^{8.5}$L$_{\odot}$. We aim at advancing our understanding of the AGN feedback phenomenon by correlating outflow…

Astrophysics of Galaxies · Physics 2023-12-13 K. Hervella Seoane , C. Ramos Almeida , J. A. Acosta Pulido , G. Speranza , C. N. Tadhunter , P. S. Bessiere

We investigate the conditions that facilitate galactic-scale outflows using a sample of 155 typical star-forming galaxies at $z$~2 drawn from the MOSFIRE Deep Evolution Field (MOSDEF) survey. The sample includes deep rest-frame UV…

The Large Magellanic Cloud (LMC) is home to many HII regions, which may lead to significant outflows. We examine the LMC's multiphase gas ($T\sim10^{4-5}$ K) in HI, SII, SiIV, and CIV using 110 stellar sight lines from the HST's Ultraviolet…

X-ray absorption and emission lines now serve as powerful diagnostics of the outflows from active galaxies. Detailed X-ray line studies of outflows have recently been enabled for a significant number of active galaxies via the grating…

Astrophysics · Physics 2009-11-07 W. N. Brandt , S. Kaspi

We used Spitzer/IRS spectroscopic data on 426 galaxies including quasars, Seyferts, LINER and HII galaxies to investigate the relationship among the mid-IR emission lines. There is a tight linear correlation between the [Ne V]14.3 um and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Miguel Pereira-Santaella , Aleksandar M. Diamond-Stanic , Almudena Alonso-Herrero , George H. Rieke

We study outflows in 130 galaxies with -22<MUV<-16 at z=3-9 identified in JWST NIRSpec and NIRCam WFSS data taken by the ERO, CEERS, FRESCO, GLASS, and JADES programs. We identify 30 out of the 130 galaxies with broad components of…

Astrophysics of Galaxies · Physics 2025-03-31 Yi Xu , Masami Ouchi , Kimihiko Nakajima , Yuichi Harikane , Yuki Isobe , Yoshiaki Ono , Hiroya Umeda , Yechi Zhang

We have observed 99 mid-infrared-bright, massive young stellar objects and compact HII regions drawn from the Red MSX source (RMS) survey in the J=3$-$2 transition of $^{12}$CO and $^{13}$CO, using the James Clerk Maxwell Telescope. 89…

Solar and Stellar Astrophysics · Physics 2015-09-02 L. T. Maud , T. J. T. Moore , S. L. Lumsden , J. C. Mottram , J. S. Urquhart , M. G. Hoare

(Abridged) Star formation-driven outflows are a critical phenomenon in theoretical treatments of galaxy evolution, despite the limited ability of observations to trace them across cosmological timescales. If the strongest MgII…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Daniel B. Nestor , Benjamin D. Johnson , Vivienne Wild , Brice Ménard , David A. Turnshek , Sandhya Rao , Max Pettini

Emission signatures from galactic winds provide an opportunity to directly map the outflowing gas, but this is traditionally challenging because of the low surface brightness. Using deep observations (27 hours) of the Hubble Deep Field…

We analyze spectra of a gravitationally lensed galaxy, known as the Sunburst Arc, that is leaking ionizing photons, also known as the Lyman continuum (LyC). Magnification from gravitational lensing permits the galaxy to be spatially…

Galactic outflows play a major role in the evolution of galaxies, but the underlying physical processes are poorly understood. This is mainly because we have little information about the outflow structure, especially on large scales. In…

Astrophysics of Galaxies · Physics 2020-05-19 Bingjie Wang , Timothy M. Heckman , Guangtun Zhu , Colin A. Norman

We present results of our ongoing study of the morphology and kinematics of the ionised gas in 48 representative nearby elliptical and lenticular galaxies using the SAURON integral-field spectrograph on the 4.2m William Herschel Telescope.…

We investigated the interstellar medium properties of the disc and outflowing gas in the central regions of nine nearby Seyfert galaxies, all characterised by prominent outflows. These objects are part of the Measuring Active Galactic…

The [NII] 122 and 205 \mu m transitions are powerful tracers of the ionized gas in the interstellar medium. By combining data from 21 galaxies selected from the Herschel KINGFISH and Beyond the Peak surveys, we have compiled 141 spatially…

We investigate the production efficiency of ionizing photons ($\xi_{ion}^*$) of 1174 galaxies with secure redshift at z=2-5 from the VANDELS survey to determine the relation between ionizing emission and physical properties of bright and…

We have searched for massive molecular outflows in a sample of high-mass star forming regions, and we have characterised both the outflow properties and those of their associated molecular clumps. With a sample composed largely of more…

Astrophysics of Galaxies · Physics 2015-05-13 A. Lopez-Sepulcre , C. Codella , R. Cesaroni , N. Marcelino , C. M. Walmsley
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