Computer Science – Graphics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.6401g&link_type=abstract
American Astronomical Society Meeting 205, #64.01; Bulletin of the American Astronomical Society, Vol. 36, p.1452
Computer Science
Graphics
Scientific paper
About half of the super-Eddington CXO sources in the dusty overlap region of the Antennae Galaxies have IR super star cluster (SSC) counterparts within 100 pc. These CXO sources may be coincident with or recently ejected from SSCs. High-resolution spectra of the youngest SSCs (ages of 3-7 Myr) reveal broad Brg emission due to cluster outflows that are powered by the combined stellar winds of the ionizing stars and the ejecta of supernovae. A simple population synthesis model for the X-ray emission from the massive stellar populations of a 106 Msun cluster predicts X-ray luminosities from L(X) = 6 x 1037 erg/s during its wind-dominated phase (at ages < 3.7 Myr) up to super-Eddington luminosities > 1039 erg/s when high-mass X-ray binaries are present. Comparing the model with the ratio of observed X-ray and IR luminosities circumvents the problem of poorly known, variable extinction since the two wavebands probe similar absorption columns. Normal stellar populations can explain the observed X-ray luminosities of some of the Antennae sources, but an additional source of X-ray emission is required for a ULX. Multiwavelength observations, extinction measurements, and the ages and stellar populations of X-ray counterparts are essential to differentiate between normal X-ray populations and more exotic ones (e.g. relativistically beamed XRBs or intermediate-mass black holes), thus determining the demographics of truly superluminous X-ray sources.
Gilbert Alyssa M.
Graham James R.
No associations
LandOfFree
Luminous X-ray Sources and Emission-Line Clusters in the Antennae does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Luminous X-ray Sources and Emission-Line Clusters in the Antennae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Luminous X-ray Sources and Emission-Line Clusters in the Antennae will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1639942