Journal Article

PUBDB-2023-00042

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Uniform Recalibration of Common Spectrophotometry Standard Stars onto the CALSPEC System Using the SuperNova Integral Field Spectrograph

Rubin, D. (Corresponding author) ; Aldering, G. ; Antilogus, P. ; Aragon, C. ; Bailey, S. ; Baltay, C. ; Bongard, S. ; Boone, K. ; Buton, C. ; Copin, Y. ; Dixon, S. ; Fouchez, D. ; Gangler, E. ; Gupta, R. ; Hayden, B. ; Hillebrandt, W. ; Kim, A. G. ; Kowalski, M.DESY* ; Kuesters, D.DESY* ; Leget, P.-F. ; Mondon, F. ; Nordin, J. ; Pain, R. ; Pecontal, E. ; Pereira, R. ; Perlmutter, S. ; Ponder, K. A. ; Rabinowitz, D. ; Rigault, M. ; Runge, K. ; Saunders, C. ; Smadja, G. ; Suzuki, N. ; Tao, C. ; Taubenberger, S. ; Thomas, R. C. ; Vincenzi, M. ; Factory, N. S. (Collaboration Author)

2022
Univ. of Chicago Press Chicago, Ill. [u.a.]

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Please use a persistent id in citations: doi:10.3847/1538-4365/ac7b7f  doi:10.3204/PUBDB-2023-00042

Report No.: arXiv:2205.01116

Abstract: We calibrate spectrophotometric optical spectra of 32 stars commonly used as standard stars, referenced to 14 stars already on the Hubble Space Telescope–based CALSPEC flux system. Observations of CALSPEC and non-CALSPEC stars were obtained with the SuperNova Integral Field Spectrograph over the wavelength range 3300–9400 Å as calibration for the Nearby Supernova Factory cosmology experiment. In total, this analysis used 4289 standard-star spectra taken on photometric nights. As a modern cosmology analysis, all presubmission methodological decisions were made with the flux scale and external comparison results blinded. The large number of spectra per star allows us to treat the wavelength-by-wavelength calibration for all nights simultaneously with a Bayesian hierarchical model, thereby enabling a consistent treatment of the Type Ia supernova cosmology analysis and the calibration on which it critically relies. We determine the typical per-observation repeatability (median 14 mmag for exposures ≳5 s), the Maunakea atmospheric transmission distribution (median dispersion of 7 mmag with uncertainty 1 mmag), and the scatter internal to our CALSPEC reference stars (median of 8 mmag). We also check our standards against literature filter photometry, finding generally good agreement over the full 12 mag range. Overall, the mean of our system is calibrated to the mean of CALSPEC at the level of ∼3 mmag. With our large number of observations, careful cross-checks, and 14 reference stars, our results are the best calibration yet achieved with an integral-field spectrograph, and among the best calibrated surveys.

Note: ISSN 1538-4365 not unique: **2 hits**.Accepted for publication in ApJS

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Contributing Institute(s):

1. Astroteilchenphysik (ZEU-EXP/AT)
2. Neutrinoteleskop (ZEU-ICE)

Research Program(s):

1. 613 - Matter and Radiation from the Universe (POF4-613) (POF4-613)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2022

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Rubin, D. (Corresponding author) ; Aldering, G. ; Antilogus, P. ; Aragon, C. ; Bailey, S. ; Baltay, C. ; Bongard, S. ; Boone, K. ; Buton, C. ; Copin, Y. ; Dixon, S. ; Fouchez, D. ; Gangler, E. ; Gupta, R. ; Hayden, B. ; Hillebrandt, W. ; Kim, A. G. ; Kowalski, M.DESY* ; Kuesters, D.Extern* ; Leget, P.-F. ; Mondon, F. ; Nordin, J. ; Pain, R. ; Pecontal, E. ; Pereira, R. ; Perlmutter, S. ; Ponder, K. A. ; Rabinowitz, D. ; Rigault, M. ; Runge, K. ; Saunders, C. ; Smadja, G. ; Suzuki, N. ; Tao, C. ; Taubenberger, S. ; Thomas, R. C. ; Vincenzi, M. ; Factory, N. S.
Uniform Recalibration of Common Spectrophotometry Standard Stars onto the CALSPEC System Using the SuperNova Integral Field Spectrograph
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