Results 131 to 140 of about 11,157 (237)

CN and HNC line emission in IR luminous galaxies

open access: yes, 2002
We have observed HNC 1–0, CN 1–0 & 2–1 line emission in a sample of 13 IR luminous (LIRGs, $L_{\rm IR} > 10^{11}~L_{\odot}$) starburst and Seyfert galaxies.
S. Hüttemeister   +3 more
core   +1 more source

Shining a Light on the Connections between Galactic Outflows Seen in Absorption and Emission Lines

open access: yesThe Astrophysical Journal
Galactic outflows provide important feedback effects to regulate the evolution of host galaxies. Two primary diagnostics of outflows are broad and/or blueshifted emission and absorption lines.
Xinfeng Xu   +16 more
doaj   +1 more source

Spectrophotometry of three emission-line galaxies.

open access: yesThe Astrophysical Journal, 1973
Spectrophotometric data concerning three blue emission-line galaxies were obtained from image-tube spectrograms secured with the 84-inch reflector of the Kitt Peak National Observatory. Analysis of these data indicated a level of excitation similar to that of low- or moderate-excitation galactic H II regions.
openaire   +1 more source

Stellar- and AGN-driven Outflows in JWST Galaxies at z = 3–9: More Frequent, Wider Opening Angles, and Mostly Bounded

open access: yesThe Astrophysical Journal
We study outflows in 130 galaxies with −22 
Yi Xu   +7 more
doaj   +1 more source

Search for emission-line galaxies towards nearby voids. List 2

open access: yes, 1998
We present a second list of emission-line galaxies (ELGs) discovered during our survey of nearby voids. The project aims to answer the question of whether the giant galaxies are fair tracers of the large scale structure and whether the voids are really
H. J. Hagen   +3 more
core   +1 more source

Predicting CO and dust emission of star-forming galaxies

open access: yesAstronomy & Astrophysics
In this work, we investigate whether dwarf galaxies differ from spirals and whether star formation produces radio and far-infrared (FIR) emission in the same way as it does for spiral galaxies.
Vollmer B.   +3 more
doaj   +1 more source

CEERS Key Paper. VIII. Emission-line Ratios from NIRSpec and NIRCam Wide-Field Slitless Spectroscopy at z > 2

open access: yesThe Astrophysical Journal
We  use James Webb Space Telescope Near-Infrared Camera Wide Field Slitless Spectroscopy (NIRCam WFSS) and the Near-Infrared spectrograph (NIRSpec) in the Cosmic Evolution Early Release survey to measure rest-frame optical emission-line ratios of 155 ...
Bren E. Backhaus   +39 more
doaj   +1 more source

Extremely Metal-poor Galaxies in DESI DR1: Connections to Galaxies in the Early Universe

open access: yesThe Astronomical Journal
Extremely metal-poor galaxies (XMPGs), defined as having metallicities below 10% of the solar value, are considered possible local analogs to primordial systems and offer a unique window into early galaxy evolution.
Jipeng Sui   +45 more
doaj   +1 more source

Lyα Nebulae in HETDEX: The Largest Statistical Census Bridging Lyα Halos and Blobs across Cosmic Noon

open access: yesThe Astrophysical Journal
The Hobby–Eberly Dark Energy Experiment (HETDEX) is an untargeted ∼540 deg ^2 spectroscopic survey of Ly α emission in the 1.9 
Erin Mentuch Cooper   +22 more
doaj   +1 more source

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