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Rest-Frame R-band Lightcurve of a z~1.3 Supernova Obtained with Keck Laser Adaptive Optics
- Publication Year :
- 2007
- Publisher :
- arXiv, 2007.
-
Abstract
- We present Keck diffraction limited H-band photometry of a z~1.3 Type Ia supernova (SN) candidate, first identified in a Hubble Space Telescope (HST) search for SNe in massive high redshift galaxy clusters. The adaptive optics (AO) data were obtained with the Laser Guide Star facility during four observing runs from September to November 2005. In the analysis of data from the observing run nearest to maximum SN brightness, the SN was found to have a magnitude H=23.9 +/- 0.14 (Vega). We present the H-band (approximately rest-frame R) light curve and provide a detailed analysis of the AO photometric uncertainties. By constraining the aperture correction with a nearby (4" separation) star we achieve 0.14 magnitude photometric precision, despite the spatially varying AO PSF.<br />Comment: 11 pages, 8 figures, Accepted for Publication in AJ Updated the citations, fixed typos
- Subjects :
- Physics
Brightness
010308 nuclear & particles physics
Astrophysics (astro-ph)
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
Light curve
01 natural sciences
Redshift
Photometry (optics)
Supernova
Laser guide star
Space and Planetary Science
0103 physical sciences
Astrophysics::Solar and Stellar Astrophysics
Astrophysics::Earth and Planetary Astrophysics
Adaptive optics
010303 astronomy & astrophysics
Galaxy cluster
Astrophysics::Galaxy Astrophysics
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....b0a6e95d26388defd2715839be46247f
- Full Text :
- https://doi.org/10.48550/arxiv.astro-ph/0703381