Results 61 to 70 of about 181 (148)
The Open Journal of AstrophysicsIn galaxies with significant ongoing star formation there is an impressively tight correlation between total infrared luminosity (L${\mathstrut}_{TIR}$) and H$\alpha$ luminosity (L${\mathstrut}_{H\alpha}$), when H$\alpha$ is properly corrected for ...
Vivienne Wild +5 more
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The Structure Of Post-Starburst Galaxies In The Early Universe
, 2017 Despite decades of study, we still do not fully understand why some massive galaxies abruptly switch off their star formation in the early Universe, and what causes their rapid transition to the red sequence. Post-starburst galaxies (PSBs) are key to understanding this transition phase, as they represent systems in which a major burst of star formation
Maltby, David +2 more
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Can Supernovae Quench Star Formation in High-z Galaxies?
The Astrophysical JournalJWST is providing a unique opportunity to directly study the feedback processes regulating star formation (SF) in early galaxies. The two z > 5 quiescent systems (JADES-GS-z7-01-QU and MACS0417-z5BBG) detected so far show a recent starburst after which ...
Viola Gelli +3 more
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Dissecting the γ-Ray Emissions of the Nearby Galaxies NGC 1068 and NGC 253
The Astrophysical JournalIntrigued by recent high-energy study results for nearby galaxies with γ -ray emission and in particular NGC 1068 that has been detected as a neutrino-emitting source by the IceCube Neutrino Observatory, we conduct a detailed analysis of the γ -ray data ...
Shunhao Ji +4 more
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Resolving the Nuclear Environments of Tidal Disruption Event Host Galaxies within 45 pc
The Astrophysical JournalUsing Hubble Space Telescope/Space Telescope Imaging Spectrograph observations, we present the highest-spatial-resolution spectroscopic study to date of four tidal disruption event (TDE) host galaxies, with the best observed being the post-starburst host
Megan Newsome +7 more
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A Multiwavelength Evaluation of AGN in the Post-starburst Phase
The Astrophysical JournalThe quenching of star formation is a crucial phase in galaxy evolution. Although feedback from active galactic nuclei (AGN) has been proposed as a key driver of this transition, the lack of strong AGN in nearby quenching galaxies raises questions about ...
Yuanze Luo +16 more
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A Catalog of Post-starburst Galaxies from DESI
Research Notes of the AASAbstract Post-starburst galaxies are galaxies that are no longer producing stars and have entered or are entering quiescence. These galaxies can be identified with spectral features, for which the Dark Energy Spectroscopic Instrument (DESI) data provides an opportunity to do so at a higher redshift range compared ...
Dharlenny Soto, K. Decker French
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The Astrophysical JournalStars wandering too close to supermassive black holes (SMBHs) can be ripped apart by the tidal forces of the black hole. Recent optical surveys have revealed that E+A galaxies are over-represented by a factor of ∼30, while green galaxies are over ...
Odelia Teboul, Hagai B. Perets
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Do Red Galaxies Form More Stars than Blue Galaxies?
The Astrophysical JournalA new model is proposed in which typical galaxies form most of their stellar mass in a phase with an intrinsically red stellar population. In the standard picture, galaxies with intrinsically red stellar populations are believed to have old stellar ...
Charles L. Steinhardt
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The Astrophysical JournalThe Sparks survey provides rest-frame near-infrared spectroscopy for 93 local massive galaxies spanning the rapid transition from starburst to post-starburst, including Balmer-strong galaxies as well as systems with active galactic nuclei (AGNs ...
Dalya Baron +6 more
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