Results 1 to 10 of about 10,366 (216)
Stars, Gas, and Star Formation of Distant Post-starburst Galaxies [PDF]
The Astrophysical Journal, 2023 We present a comprehensive multiwavelength study of five post-starburst galaxies with M _* > 10 ^11 M _⊙ at z ∼ 0.7, examining their stars, gas, and current and past star formation activities.
Po-Feng Wu +7 more
doaj +5 more sources
The State of the Molecular Gas in Post-starburst Galaxies
The Astrophysical Journal, 2023 The molecular gas in galaxies traces both the fuel for star formation and the processes that can enhance or suppress star formation. Observations of the molecular gas state can thus point to when and why galaxies stop forming stars.
K. Decker French +9 more
doaj +3 more sources
Low redshift post-starburst galaxies host abundant HI reservoirs
The Open Journal of AstrophysicsStudying the gas content of post-starburst (PSB) galaxies can provide valuable clues regarding the process of fast quenching. Although previous works have studied the molecular gas content of PSBs, only a handful of HI measurements exist.
Sara Ellison +10 more
doaj +2 more sources
Caught in the Act of Quenching? -- A Population of Post-Starburst Ultra-Diffuse Galaxies
The Open Journal of AstrophysicsWe report the discovery of post-starburst ultra-diffuse galaxies (UDGs), identified through spectroscopic analysis with KCWI at the Keck II Telescope. Our analysis is based on a sample of 44 candidate UDGs selected from the Systematically Measuring Ultra-
Loraine Sandoval Ascencio +5 more
doaj +2 more sources
Cool Gas in the Circumgalactic Medium of Massive Post Starburst Galaxies
The Open Journal of AstrophysicsObserving the interplay between galaxies and their gaseous surroundings is crucial for understanding how galaxies form and evolve, including the roles of long-lived cool gas reservoirs, starburst and AGN driven outflows.
Zoe Harvey +4 more
doaj +2 more sources
Chemical abundances in the dwarf galaxy NGC 4163 based on the nebular and auroral emission lines
Astronomische Nachrichten, Volume 343, Issue 9-10, November-December 2022., 2022 Abstract We constructed an oxygen abundance map and N/O ratio map of the unusually low excitation dwarf irregular galaxy NGC 4163 based on publicly available spectroscopy obtained by the MaNGA survey. We detected auroral emission line [O II]λλ$$ \lambda \lambda $$7320,7330 which allows us to measure chemical abundance by direct Te$$ {\mathrm{T}}_e ...
I. A. Zinchenko, L. S. Pilyugin
wiley +1 more source
Merger Signatures are Common, but not Universal, in Massive, Recently Quenched Galaxies at z ∼ 0.7
The Astrophysical Journal, 2023 We present visual classifications of merger-induced tidal disturbances in 143 M _* ∼ 10 ^11 M _⊙ post-starburst galaxies at z ∼ 0.7 identified in the $\mathrm{SQuIGG}\vec{L}{\rm{E}}$ Sample.
Margaret E. Verrico +11 more
doaj +1 more source
An Extremely Compact, Low-mass Galaxy on its Way to Quiescence at z = 5.2
The Astrophysical Journal Letters, 2023 We report the discovery of a low-mass z = 5.200 ± 0.002 galaxy that is in the process of ceasing its star formation. The galaxy, MACS0417-z5BBG, is multiply imaged with magnification factors ∼40 by the galaxy cluster MACS J0417.5-1154, observed as part ...
Victoria Strait +17 more
doaj +1 more source
An Explanation for the Overrepresentation of Tidal Disruption Events in Post-starburst Galaxies
The Astrophysical Journal, 2023 Tidal disruption events (TDEs) provide a valuable probe for studying the dynamics of stars in the nuclear environments of galaxies. Recent observations show that TDEs are strongly overrepresented in post-starburst or “green valley” galaxies, although the
Mengye Wang +3 more
doaj +1 more source
2022 report from the Auger-TA working group on UHECR arrival directions [PDF]
EPJ Web of Conferences, 2023 After over 60 years, the powerful engines that accelerate ultra-high-energy cosmic rays (UHECRs) to the formidable energies at which we observe them from Earth remain mysterious.
di Matteo A. +14 more
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