Results 51 to 60 of about 271,838 (312)

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, Yiqiu Ma, Qingwen Wu, Ning Jiang   +3 more
doaj   +1 more source

Current Star Formation in Post-Starburst Galaxies? [PDF]

, 2001
Radio continuum observations are a probe of star formation in galaxies, and are unaffected by dust extinction. Observations of the distant rich cluster Cl 0939+4713 have detected radio galaxies classified as post-starburst (``k+a'') on the basis of their
Miller, Neal A., Owen, Frazer N.
core   +4 more sources

The Colors and Sizes of Recently Quenched Galaxies: A Result of Compact Starburst before Quenching [PDF]

Astrophysical Journal, 2019
We analyze the colors and sizes of 32 quiescent (UVJ-selected) galaxies with strong Balmer absorption (EW(Hδ) ≥ 4 Å) at z ∼ 0.8 drawn from DR2 of the LEGA-C survey to test the hypothesis that these galaxies experienced compact, central starbursts before ...
Po-Feng 柏鋒 Wu 吳, A. V. D. Wel, R. Bezanson, A. Gallazzi, C. Pacifici, C. Straatman, I. Barišić, E. Bell, Priscilla Chauké, F. D’Eugenio, M. Franx, A. Muzzin, D. Sobral, J. V. Houdt   +13 more
semanticscholar   +1 more source

Starbursts in Isolated Galaxies? [PDF]

AIP Conference Proceedings, 2005
I investigated the evolution of star forming dwarf galaxies by means of a one-zone model extended for dynamical evolution. This allows for a coupling between the dynamical state of the galaxy and its internal properties like star formation activity or the thermal state of the interstellar medium (ISM). The presented work focusses on the star formation (
openaire   +2 more sources

Methods for identifying high‐redshift galaxy cluster candidates

Astronomische Nachrichten, Volume 340, Issue 7, Page 618-621, August 2019., 2019
Abstract Recent theories linked long gamma ray bursts (GRBs) to galaxies with rapid star formation or starburst; thus, we expect that long GRBs (LGRBs) are more frequent in midcluster galaxies where mergers and tidal interactions between gas‐rich galaxies are more likely to occur. Yet there is no galaxy cluster known to be associated with LGRBs.
Sandor Pinter, Lajos G. Balázs, Zsolt Bagoly, Istvan Horvath, István I. Rácz, Viktor L. Tóth   +5 more
wiley   +1 more source

Efficient formation of massive galaxies at cosmic dawn by feedback-free starbursts [PDF]

Monthly notices of the Royal Astronomical Society, 2023
JWST observations indicate a surprising excess of luminous galaxies at z ∼ 10 and above, consistent with efficient conversion of the accreted gas into stars, unlike the suppression of star formation by feedback at later times.
A. Dekel, Kartick C. Sarkar, Y. Birnboim, Nir Mandelker, Zhaozhou Li   +4 more
semanticscholar   +1 more source

Extreme submillimetre starburst galaxies [PDF]

Astronomy & Astrophysics, 2018
We have used two catalogues, a Herschel catalogue selected at 500 μm (HerMES) and an IRAS catalogue selected at 60 μm (RIFSCz), to contrast the sky at these two wavelengths. Both surveys demonstrate the existence of “extreme” starbursts, with star-formation rates (SFRs) > 5000 M⊙ yr−1.
Rowan-Robinson, M, Wang, L, Farrah, D, Rigopoulou, D, Gruppioni, C, Vaccari, M, Marchetti, L, Clements, DL, Pearson, WJ   +8 more
openaire   +6 more sources

Estimation of the detected background by the future gamma ray transient mission CAMELOT

Astronomische Nachrichten, Volume 340, Issue 7, Page 666-673, August 2019., 2019
Abstract This study presents a background estimation for the CubeSats Applied for MEasuring and LOcalising Transients (CAMELOT), which is a proposed fleet of nanosatellites for the all‐sky monitoring and timing‐based localization of gamma ray transients with precise localization capability at low Earth orbits.
Jakub Řípa, Gábor Galgóczi, Norbert Werner, András Pál, Masanori Ohno, László Mészáros, Tsunefumi Mizuno, Norbert Tarcai, Kento Torigoe, Nagomi Uchida, Yasushi Fukazawa, Hiromitsu Takahashi, Kazuhiro Nakazawa, Naoyoshi Hirade, Kengo Hirose, Syohei Hisadomi, Teruaki Enoto, Hirokazu Odaka, Yuto Ichinohe, Zsolt Frei, László Kiss   +20 more
wiley   +1 more source

Star Formation Law at Sub‐kpc Scale in the Elliptical Galaxy Centaurus A as Seen by ALMA

Advances in Astronomy, Volume 2017, Issue 1, 2017., 2017
We present an extensive analysis of the relationship between star formation rate surface density (∑SFR) and molecular gas surface density (∑H2) at sub‐kpc scale in the elliptical galaxy Centaurus A (also known as NGC 5128) at the distance 3.8 Mpc. 12CO (J = 2‐1) data from Atacama Large Millimetre/Sub‐Millimetre Array SV data with very high resolution ...
Jazeel H. Azeez, Zamri Z. Abidin, C.-Y. Hwang, Zainol A. Ibrahim, Dean Hines   +4 more
wiley   +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, Gabriel Brammer, Adam Muzzin, Guillaume Desprez, Yoshihisa Asada, Roberto Abraham, Maruša Bradač, Kartheik G. Iyer, Nicholas Martis, Lamiya Mowla, Gaël Noirot, Ghassan T. E. Sarrouh, Marcin Sawicki, Chris Willott, Katriona Gould, Tess Grindlay, Jasleen Matharu, Gregor Rihtaršič   +17 more
doaj   +1 more source