Results 91 to 100 of about 35,842 (270)

Probing extreme black‐hole outflows on short timescales via high spectral‐resolution x‐ray imagers

Astronomische Nachrichten, Volume 345, Issue 6-7, July-August 2024.
Abstract We investigate outflows and the physics of super‐Eddington versus sub‐Eddington regimes in black hole systems. Our focus is on prospective science using next‐generation high‐resolution soft x‐ray instruments. We highlight the properties of black hole ultraluminous x‐ray source (ULX) systems in particular. Owing to scale invariance in accreting
C. Pinto, J. F. Steiner, A. Bodaghee, P. Chakraborty, M. Sobolewska, D. R. Pasham, A. Ogorzalek, J. Zuhone, A. Bogdan, M. Vogelsberger   +9 more
wiley   +1 more source

Arp 302: Nonstarburst Luminous Infrared Galaxies [PDF]

The Astrophysical Journal, 1997
AAS Latex plus two postscript figures. ApJ Letters (accepted)
Robert A. Gruendl, Yu Gao, K. Y. Lo
openaire   +3 more sources

Dense Molecular Gas Properties of the Central Kiloparsec of Nearby Ultraluminous Infrared Galaxies Constrained by ALMA Three Transition-line Observations

The Astrophysical Journal, 2023
We report the results of Atacama Large Millimeter/submillimeter Array (ALMA) 1–2 kpc resolution, three rotational transition-line ( J = 2–1, J = 3–2, and J = 4–3) observations of multiple dense molecular gas tracers (HCN, HCO ^+ , and HNC) for 10 nearby (
Masatoshi Imanishi, Shunsuke Baba, Kouichiro Nakanishi, Takuma Izumi   +3 more
doaj   +1 more source

A Significant Population of Very Luminous Dust-Obscured Galaxies at Redshift z ~ 2 [PDF]

, 2008
Observations with Spitzer Space Telescope have recently revealed a significant population of high-redshift z~2 dust-obscured galaxies (DOGs) with large mid-IR to UV luminosity ratios.
Arjun Dey, B. T. Soifer, Buell T. Jannuzi, Chao Bian, Daddi E., Daniel Weedman, Elbaz D., Emeric Le Floc’h, Kate Brand, Lee Armus, Mark Brodwin, Michael J. I. Brown, Peter Eisenhardt, S. P. Willner, Sarah J. Higdon, Shane Bussmann, Vandana Desai   +16 more
core   +3 more sources

JWST imaging of the closest globular clusters—I. Possible infrared excess among white dwarfs in NGC 6397

Astronomische Nachrichten, Volume 345, Issue 6-7, July-August 2024.
Abstract We present James Webb Space Telescope observations of the globular cluster NGC 6397 and use them to extend to infrared wavelengths the characterization of the cluster's entire white dwarf (WD) cooling sequence (CS). The data allows us to probe fundamental astrophysical WD properties and to search for evidence in their colors for (or against ...
L. R. Bedin, D. Nardiello, M. Salaris, M. Libralato, P. Bergeron, A. J. Burgasser, D. Apai, M. Griggio, M. Scalco, J. Anderson, R. Gerasimov, A. Bellini   +11 more
wiley   +1 more source

Molecular gas in luminous infrared galaxies

The Astrophysical Journal, 1991
Radio observations of 60 bright IRAS galaxies with redshifts of 1500-25,000 km/sec are reported. Data obtained in the 1-0 line of CO using the 12-m NRAO radio telescope during 1985-1988 are presented in extensive tables, graphs, and line profiles and analyzed along with similar data on 29 less distant IRAS bright galaxies (Tinney et al., 1990).
David B. Sanders, Nick Scoville, B. T. Soifer   +2 more
openaire   +2 more sources

Radio continuum and far-infrared emission from the galaxies in the Eridanus group

, 2005
The Eridanus galaxies follow the well-known radio-FIR correlation. Majority (70%) of these galaxies have their star formation rates below that of the Milky Way.
A. Omar, A. Omar, C. A. Heisler, C. N. A. Willmer, D. B. Sanders, G. Gavazzi, G. Helou, G. Neugebauer, H. Roussel, J. J. Condon, J. J. Condon, J. J. Condon, J. J. Condon, K. S. Dwarakanath, M. A. W. Verheijen, M. Harwit, M. S. Yun, M. Scodeggio, N. A. Reddy, N. Miller, P. C. Kruit van der, R. C. Kennicutt, S. Hameed, S. Veilleux, T. Elfhag, T. K. Menon   +25 more
core   +2 more sources

Not So Fast: A New Catalog of Meteor Persistent Trains

Journal of Geophysical Research: Space Physics, Volume 129, Issue 7, July 2024.
Abstract This paper presents the results of a nearly 2‐year long campaign to detect and analyze meteor persistent trains (PTs)—self‐emitting phenomena which can linger up to an hour after their parent meteor. The modern understanding of PTs has been primarily developed from the Leonid storms at the turn of the century; our goal was to assess the ...
L. E. Cordonnier, K. S. Obenberger, J. M. Holmes, G. B. Taylor, D. Vida   +4 more
wiley   +1 more source

Near‐Infrared and Star‐forming Properties of Local Luminous Infrared Galaxies [PDF]

The Astrophysical Journal, 2006
We use HST NICMOS continuum and Pa-alpha observations to study the near-infrared and star-formation properties of a representative sample of 30 local (d ~ 35-75Mpc) luminous infrared galaxies (LIRGs, infrared 8-1000um luminosities of L_IR=11-11.9[Lsun]).
Alonso Herrero, Almudena, Rieke, George H., Rieke, Marcia J., Colina, Luis, Pérez González, Pablo Guillermo, Ryder, Stuart D.   +5 more
openaire   +6 more sources

Heavy Elements and Electromagnetic Transients from Neutron Star Mergers

Annalen der Physik, Volume 536, Issue 2, February 2024.
Astro‐(physics) has made major leaps forward through the combined information provided by both gravitational waves and electromagnetic emission from the first detected neutron star merger event. This review provides an up‐to‐date overview of today's understanding of neutron star mergers and their electromagnetic emission and it discusses possible ...
Stephan Rosswog, Oleg Korobkin
wiley   +1 more source