Results 31 to 40 of about 10,116 (179)

Do post-starburst galaxies host compact molecular gas reservoirs?

Monthly Notices of the Royal Astronomical Society: Letters, 2022
ABSTRACT We analysed the high-resolution (up to ∼0.2 arcsec) ALMA CO (2–1) and 1.3 mm dust continuum data of eight gas-rich post-starburst galaxies (PSBs) in the local Universe, six of which had been studied by a recent work. In contrast to this study reporting the detections of extraordinarily compact (i.e.
Sun, Fengwu, Egami, Eiichi
openaire   +2 more sources

On Post-starburst Galaxies Dominating Tidal Disruption Events [PDF]

The Astrophysical Journal Letters, 2020
Abstract A starburst induced by a galaxy merger may create a relatively thin central stellar disk at radius ≤100 pc. We calculate the rate of tidal disruption events (TDEs) by the inspiraling secondary supermassive black hole (SMBH) through the disk. With a small enough stellar velocity dispersion (
openaire   +2 more sources

Growth of Accreting Supermassive Black Hole Seeds and Neutrino Radiation

Journal of Astrophysics, Volume 2015, Issue 1, 2015., 2015
In the framework of microscopic theory of black hole (MTBH), which explores the most important processes of rearrangement of vacuum state and spontaneous breaking of gravitation gauge symmetry at huge energies, we have undertaken a large series of numerical simulations with the goal to trace an evolution of the mass assembly history of 377 plausible ...
Gagik Ter-Kazarian, Gary Wegner
wiley   +1 more source

Properties of the Hii Regions Derived Using Integral Field Spectroscopy

Advances in Astronomy, Volume 2013, Issue 1, 2013., 2013
Here we review some of our more recent results on the observed properties of Hii regions using Integral Field Spectroscopy. In particular, we illustrate the use of this technique to study in detail the ionization conditions across the nebulae for galactic Hii regions (focused on the Orion Nebula) and the statistical study of large samples of ...
Sebastian F. Sánchez, Polychronis Papaderos   +1 more
wiley   +1 more source

Integrated field spectroscopy of E+A (post-starburst) galaxies with the Kyoto3DII [PDF]

, 2008
We have performed a two-dimensional spectroscopy of three nearby E+A (post-starburst) galaxies with the Kyoto3DII integral field spectrograph. In all the cases, Hdelta absorption is stronger at the centre of the galaxies, but significantly extended in a ...
Goto, Tomotsugu, Hattori, Takashi, Kawai, Atsushi, Shimono, Atsushi, Sugai, Hajime, Yagi, Masafumi   +5 more
core   +1 more source

M94 as a Unique Testbed for Black Hole Mass Estimates and AGN Activity at Low Luminosities

Advances in Astronomy, Volume 2012, Issue 1, 2012., 2012
We discuss the peculiar nature of the nucleus of M94 (NGC 4736) in the context of new measurements of the broad Hα emission from HST‐STIS observations. We show that this component is unambiguously associated with the high‐resolution X‐ray, radio, and variable UV sources detected at the optical nucleus of this galaxy.
Anca Constantin, Anil C. Seth, Antonis Georgakakis   +2 more
wiley   +1 more source

Welcome to the Twilight Zone: The Mid-Infrared Properties of Poststarburst Galaxies [PDF]

, 2017
We investigate the optical and Wide-field Survey Explorer (WISE) colors of "E+A" identified post-starburst galaxies, including a deep analysis on 190 post-starbursts detected in the 2{\mu}m All Sky Survey Extended Source Catalog.
Alatalo, K., Appleton, P. N., Beaton, R. L., Bitsakis, T., Brown, M. J. I., Cales, S. L., Ciesla, L., Crossett, J., Falcon-Barroso, J., French, K. D., Kelson, D. D., Kewley, L. J., Kriek, M., Lacy, M., Lanz, L., Medling, A. M., Mulchaey, J. S., Nyland, K., Rich, J. A., Urry, C. M.   +19 more
core   +2 more sources

Star Formation Histories of Dwarf Galaxies from the Colour‐Magnitude Diagrams of Their Resolved Stellar Populations

Advances in Astronomy, Volume 2010, Issue 1, 2010., 2010
In this tutorial paper we summarize how the star formation (SF) history of a galactic region can be derived from the colour‐magnitude diagram (CMD) of its resolved stars. The procedures to build synthetic CMDs and to exploit them to derive the SF histories (SFHs) are described, as well as the corresponding uncertainties.
Michele Cignoni, Monica Tosi, Ulrich Hopp   +2 more
wiley   +1 more source

Five E+A (post-starburst) galaxies as Brightest Cluster Galaxies [PDF]

Science China Physics, Mechanics and Astronomy, 2012
Brightest Cluster Galaxies (BCGs) are mostly elliptical galaxies and very rarely have prominent star formations. We found that five out of 8,812 BCGs are E+A (i.e., post-starburst) galaxies, having an Hδ absorption line with an equivalent width >2.5 A and no distinct emission lines in [O II] and Hα −.
FengShan Liu, ZhongLue Wen, JinLin Han, XianMin Meng   +3 more
openaire   +1 more source

GALAXIES PROBING GALAXIES: COOL HALO GAS FROM Az= 0.47 POST-STARBURST GALAXY [PDF]

The Astrophysical Journal, 2010
Submitted to ApJ. 13 pages, 5 figures, Figure 1 reduced in resolution.
Rubin, Kate H. R., Prochaska, J. Xavier, Koo, David C., Phillips, Andrew C., Weiner, Benjamin J.   +4 more
openaire   +2 more sources