Near-infrared observations of type Ia supernovae: The best known standard candle for cosmology
R. L. Barone-Nugent,C. Lidman,J. S. B. Wyithe,Jeremy Mould,D. A. Howell,D. A. Howell,Isobel Hook,Isobel Hook,Mark Sullivan,Peter Nugent,Iair Arcavi,S. B. Cenko,Jeff Cooke,Avishay Gal-Yam,Eric Hsiao,Mansi M. Kasliwal,Kate Maguire,Eran O. Ofek,Dovi Poznanski,Dong Xu +19 more
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In this paper, the authors present an analysis of the Hubble diagram for 12 Type Ia supernovae (SNe Ia) observed in the near-infrared J and H bands.Abstract:
We present an analysis of the Hubble diagram for 12 Type Ia supernovae (SNe Ia) observed in the near-infrared J and H bands. We select SNe exclusively from the redshift range 0.03 < z < 0.09 to reduce uncertainties coming from peculiar velocities while remaining in a cosmologically well-understood region. All of the SNe in our sample exhibit no spectral or B-band light-curve peculiarities and lie in the B-band stretch range of 0.8-1.15. Our results suggest that SNe Ia observed in the near-infrared (NIR) are the best known standard candles. We fit previously determined NIR light-curve templates to new high-precision data to derive peak magnitudes and to determine the scatter about the Hubble line. Photometry of the 12 SNe is presented in the natural system. Using a standard cosmology of (H_0, Omega_m, Lambda) = (70,0.27,0.73) we find a median J-band absolute magnitude of M_J = -18.39 with a scatter of 0.116 and a median H-band absolute magnitude of M_H = -18.36 with a scatter of 0.085. The scatter in the H band is the smallest yet measured. We search for correlations between residuals in the J- and H-band Hubble diagrams and SN properties, such as SN colour, B-band stretch and the projected distance from host-galaxy centre. The only significant correlation is between the J-band Hubble residual and the J-H pseudo-colour. We also examine how the scatter changes when fewer points in the near-infrared are used to constrain the light curve. With a single point in the H band taken anywhere from 10 days before to 15 days after B-band maximum light and a prior on the date of H-band maximum set from the date of B-band maximum, we find that we can measure distances to an accuracy of 6%. The precision of SNe Ia in the NIR provides new opportunities for precision measurements of both the expansion history of the universe and peculiar velocities of nearby galaxies.read more
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Cosmological Results from the RAISIN Survey: Using Type Ia Supernovae in the Near Infrared as a Novel Path to Measure the Dark Energy Equation of State
D. O. Jones,Kaisey S. Mandel,Robert P. Kirshner,Stephen Thorp,Peter Challis,Arturo Avelino,D. Brout,Christopher R. Burns,Ryan J. Foley,Y.-C. Pan,Daniel Scolnic,Matthew R. Siebert,Ryan Chornock,Wendy L. Freedman,Andrew S. Friedman,Joshua A. Frieman,Lluís Galbany,Eric Hsiao,L. Kelsey,George H Marion,Robert C. Nichol,Peter Nugent,Mark M. Phillips,Armin Rest,Adam G. Riess,Masao Sako,M. Smith,P. Wiseman,W. M. Wood-Vasey +28 more
TL;DR: In this article , the authors constructed a Hubble diagram from NIR observations to constrain the dark energy equation-of-state parameter, w, and analyzed the dependence of the full set of Hubble residuals on the SN Ia host galaxy mass and found 1 + w = −0.17 ± 0.12 (statistical + systematic errors).
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Testing the homogeneity of type Ia Supernovae in near-infrared for accurate distance estimations
T. Muller-bravo,Lluís Galbany,Emir Karamehmetoglu,Maximilian Stritzinger,Christopher R. Burns,Kieu Thanh Phan,A. I. Ferres,J. P. Anderson,Chris Ashall,E. Baron,Peter Hoeflich,Eric Hsiao,T. de Jaeger,S. Kumar,Mark M. Phillips,Melissa Shahbandeh,N. B. Suntzeff,S. A. Uddin +17 more
TL;DR: In this article , the authors explored the possibility of using a low number of NIR observations for accurate distance estimations, given the homogeneity at these wavelengths, and found that one epoch in J and / or H band, plus good g r -band coverage, gives an accurate estimation of peak magnitudes in the J ( J max ) and H ( H max ) bands.
Journal ArticleDOI
Constraining the SN Ia host galaxy dust law distribution and mass Step: Hierarchical BayeSN analysis of optical and near-infrared light curves
Stephen Thorp,Kaisey S. Mandel +1 more
TL;DR: In this article , a hierarchical probabilistic SED model was used to analyze the optical-NIR (BVriYJH) light curves of 86 Type Ia supernovae (SNe Ia) from the Carnegie Supernova Project to investigate the SNIa host galaxy dust law distribution and correlations between SN-Ia Hubble residuals and host mass.
Journal ArticleDOI
An implementation of Galactic white dwarf binary data analysis for MLDC-3.1
TL;DR: In this article , an iterative combinatorial algorithm was implemented to search for double white dwarfs in MLDC-3.1 data, and the results showed that the algorithm was able to detect double white dwarf signals.
Journal ArticleDOI
A BayeSN distance ladder: H0 from a consistent modelling of type ia supernovae from the optical to the near infrared
Suhail Dhawan,Stephen Thorp,Kaisey S. Mandel,S. M. Ward,Gautham Narayan,Saurabh Jha,Thaisen Chant +6 more
TL;DR: In this paper , the authors estimate H0 from the Type Ia supernova (SN Ia) distance ladder, inferring SN Ia distances with the hierarchical Bayesian SED model, BayeSN.
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