학술논문
Rest-Frame R-band Lightcurve of a z~1.3 Supernova Obtained with Keck Laser Adaptive Optics
Document Type
Working Paper
Author
Melbourne, J.; Dawson, K. S.; Koo, D. C.; Max, C.; Larkin, J. E.; Wright, S. A.; Steinbring, E.; Barczys, M.; Aldering, G.; Barbary, K.; Doi, M.; Fadeyev, V.; Goldhaber, G.; Hattori, T.; Ihara, Y.; Kashikawa, N.; Konishi, K.; Kowalski, M.; Kuznetsova, N.; Lidman, C.; Morokuma, T.; Perlmutter, S.; Rubin, D.; Schlegel, D. J.; Spadafora, A. L.; Takanashi, N.; Yasuda, N.
Source
Astron.J.133:2709-2715,2007
Subject
Language
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.
Comment: 11 pages, 8 figures, Accepted for Publication in AJ Updated the citations, fixed typos
Comment: 11 pages, 8 figures, Accepted for Publication in AJ Updated the citations, fixed typos