Results 71 to 80 of about 234,875 (165)
A dominant population of optically invisible massive galaxies in the early Universe [PDF]
Nature, 2019 Our current knowledge of cosmic star-formation history during the first two billion years (corresponding to redshift z > 3) is mainly based on galaxies identified in rest-frame ultraviolet light1.
T. Wang +11 more
semanticscholar +1 more source
Starbursts in Multiple Galaxy Mergers
The Astrophysical Journal, 2001 23 pages 16 figures,2000,ApJ,545 in press.
openaire +2 more sources
Pre-starbursts in luminous IR galaxies? [PDF]
AIP Conference Proceedings, 1997 4 pages including one postscript figure. Contribution to the Conference proceedings of the 7th Annual Astrophysics Conference in Maryland, STAR FORMATION, NEAR AND FAR, eds. Stephen S.
Gao, Yu +4 more
openaire +2 more sources
The equipartition magnetic field formula in starburst galaxies: accounting for pionic secondaries and strong energy losses [PDF]
, 2013 Equipartition arguments provide an easy way to find a characteristic scale for the magnetic field from radio emission, by assuming the energy densities in cosmic rays and magnetic fields are the same.
B. Lacki, R. Beck
semanticscholar +1 more source
Starburst radio galaxies: general properties, evolutionary histories and triggering [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 In this paper we discuss the results of a programme of spectral synthesis modelling of a sample of starburst radio galaxies in the context of scenarios for the triggering of the activity and the evolution of the host galaxies. New optical spectra are also presented for a subset of the objects discussed.
Tadhunter, C. +8 more
openaire +5 more sources
Escape of Lyman continuum radiation from local galaxies - Detection of leakage from the young starburst Tol 1247-232 [PDF]
, 2013 Context. It has been suggested that the escape fraction of hydrogen ionizing photons (f(esc)) from galaxies is evolving with time, but the picture is far from clear.
E. Leitet +4 more
semanticscholar +1 more source
The Astrophysical Journal, 1992 The use of SO and SO2 as probes of the dense interstellar medium in the nearby starburst galaxies NGC 253 and M82 is described. Emission in the 99.3 GHz 3(2) - 2(1) rotational transition of SO was detected in NGC 253 and possibly in M82, and upper limits are reported for emission in the 219.9 GHz 6(5) - 5(4) transition of SO and two lines of SO2.
S. J. Petuchowski, C. L. Bennett
openaire +1 more source
The cold gas content of post-starburst galaxies [PDF]
, 2013 Post-starburst galaxies, or E+A galaxies, are characterized by optical spectra showing strong Balmer absorption lines, indicating a young stellar population, and little or no emission lines, implying no active star formation.
M. Zwaan +3 more
semanticscholar +1 more source
Dynamics of starbursting dwarf galaxies: I Zw 18 [PDF]
Astronomy & Astrophysics, 2012 I Zw 18 is a prototype Blue Compact Dwarf (BCD), characterized by a strong starburst and extremely low metallicity (Z ~ 0.02 Zsun). It has long been considered a candidate young galaxy in the Local Universe, but recent studies indicate the presence of old stars. We analysed archival VLA observations of the 21 cm line and found that the HI associated to
F. Lelli +3 more
openaire +4 more sources
PROPERTIES OF NEARBY STARBURST GALAXIES BASED ON THEIR DIFFUSE GAMMA-RAY EMISSION [PDF]
, 2012 The physical relationship between the far-infrared and radio fluxes of star-forming galaxies has yet to be definitively determined. The favored interpretation, the “calorimeter model,” requires that supernova generated cosmic-ray (CR) electrons cool ...
T. Paglione, Ryan D. Abrahams
semanticscholar +1 more source