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Full-Text Articles in Physical Sciences and Mathematics
Very Early Ultraviolet And Optical Observations Of The Type Ia Supernova 2009ig, Ryan J. Foley, P. J. Challis, A. V. Filippenko, M. Ganeshalingam, W. Landsman, W. Li, G. H. Marion, J. M. Silverman, R. L. Beaton, V. N. Bennert, S. B. Cenko, M. Childress, P. Guhathakurta, L. Jiang, J. S. Kalirai, R. P. Kirshner, A. Stockton, E. J. Tollerud, J. Vinkó, J. C. Wheeler, J.-H. Woo
Very Early Ultraviolet And Optical Observations Of The Type Ia Supernova 2009ig, Ryan J. Foley, P. J. Challis, A. V. Filippenko, M. Ganeshalingam, W. Landsman, W. Li, G. H. Marion, J. M. Silverman, R. L. Beaton, V. N. Bennert, S. B. Cenko, M. Childress, P. Guhathakurta, L. Jiang, J. S. Kalirai, R. P. Kirshner, A. Stockton, E. J. Tollerud, J. Vinkó, J. C. Wheeler, J.-H. Woo
Physics
Supernova (SN) 2009ig was discovered 17 hr after explosion by the Lick Observatory Supernova Search, promptly classified as a normal Type Ia SN (SN Ia), peaked at V = 13.5 mag, and was equatorial, making it one of the foremost SNe for intensive study in the last decade. Here, we present ultraviolet (UV) and optical observations of SN 2009ig, starting about 1 day after explosion until around maximum brightness. Our data include excellent UV and optical light curves, 25 premaximum optical spectra, and 8 UV spectra, including the earliest UV spectrum ever obtained of an SN Ia. SN 2009ig is …
Reducing Zero-Point Systematics In Dark Energy Supernova Experiments, L. Faccioli, A. G. Kim, R. Miquel, G. Bernstein, A. Bonissent, M. Brown, W. Carithers, Jodi L. Christiansen, N. Connolly, S. Deustua, D. Gerdes, L. Gladney, G. Kushner, E. V. Linder, S. Mckee, A. Mostek, H. Shukla, A. Stebbins, C. Stoughton, D. Tucker
Reducing Zero-Point Systematics In Dark Energy Supernova Experiments, L. Faccioli, A. G. Kim, R. Miquel, G. Bernstein, A. Bonissent, M. Brown, W. Carithers, Jodi L. Christiansen, N. Connolly, S. Deustua, D. Gerdes, L. Gladney, G. Kushner, E. V. Linder, S. Mckee, A. Mostek, H. Shukla, A. Stebbins, C. Stoughton, D. Tucker
Physics
We study the effect of filter zero-point uncertainties on future supernova dark energy missions. Fitting for calibration parameters using simultaneous analysis of all Type Ia supernova standard candles achieves a significant improvement over more traditional fit methods. This conclusion is robust under diverse experimental configurations (number of observed supernovae, maximum survey redshift, inclusion of additional systematics). This approach to supernova fitting considerably eases otherwise stringent mission calibration requirements. As an example we simulate a space-based mission based on the proposed JDEM satellite; however the method and conclusions are general and valid for any future supernova dark energy mission, ground or …