Mathematics – Logic
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.1423h&link_type=abstract
American Astronomical Society, 201st AAS Meeting, #14.23; Bulletin of the American Astronomical Society, Vol. 34, p.1122
Mathematics
Logic
Scientific paper
We use data collected from the Robotic Optical Transient Search Experiment (ROTSE) Telescope to search for nearby Type Ia supernovae. The nightly sky patrols of ROTSE span a one year period and cover a region of the sky from +65 degrees to -15 degrees declination for all values of right ascension, imaging down to a visual magnitude of 15.5. Such a large area, nightly sky patrol lends itself very well to detecting supernovae that reside in previously undetected low-surface brightness galaxies (LSB) or alternatively free-floating stars not associated with a galaxy out to a maximum distance of 60 Mpc. For each supernovae found that is not obviously associated with a known galaxy, we will use deep optical images to search for an LSB galaxy host for the supernovae. From this we can estimate the space density of LSB galaxies in the local Universe. So far we have searched over 50% of the data, and no supernovae were found. Therefore the results already place cosmological constraints on the mass contribution of LSB galaxies and/or free-floating stars. We will present the results from the entire ROTSE database, and, in the event that no supernovae are found, we will use the volume of sky scanned by ROTSE, the filter detection rate from Monte Carlo simulations, and a typical estimate of the frequency of Ia supernovae in order to place an upper limit on the optical luminosity density due to LSB galaxies in the local Universe and to calculate the ratio of stars in LSB galaxies and free-floating stars to the stars in high surface brightness galaxies.
Bregman Joel N.
Hayward Christopher
Irwin Jimmy A.
No associations
LandOfFree
Using Type Ia Supernovae as Earmarks for Low-Surface Brightness Galaxies 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 Using Type Ia Supernovae as Earmarks for Low-Surface Brightness Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using Type Ia Supernovae as Earmarks for Low-Surface Brightness Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1889392