SIMBAD references

2016ApJ...830...10H - Astrophys. J., 830, 10-10 (2016/October-2)

Optical identification of cepheids in 19 host galaxies of Type Ia supernovae and NGC 4258 with the Hubble Space Telescope.

HOFFMANN S.L., MACRI L.M., RIESS A.G., YUAN W., CASERTANO S., FOLEY R.J., FILIPPENKO A.V., TUCKER B.E., CHORNOCK R., SILVERMAN J.M., WELCH D.L., GOOBAR A. and AMANULLAH R.

Abstract (from CDS):

We present results of an optical search conducted as part of the SH0ES project (Supernovae and H₀ for the Equation of State of dark energy) for Cepheid variable stars using the Hubble Space Telescope (HST) in 19 hosts of Type Ia supernovae (SNe Ia) and the maser-host galaxy NGC 4258. The targets include nine newly imaged SN Ia hosts using a novel strategy based on a long-pass filter that minimizes the number of HST orbits required to detect and accurately determine Cepheid properties. We carried out a homogeneous reduction and analysis of all observations, including new universal variability searches in all SN Ia hosts, which yielded a total of 2200 variables with well-defined selection criteria, the largest such sample identified outside the Local Group. These objects are used in a companion paper to determine the local value of H₀ with a total uncertainty of 2.4%.

Journal keyword(s): distance scale - galaxies: distances and redshifts - cosmology: observations - stars: variables: Cepheids - stars: variables: Cepheids

VizieR on-line data: <Available at CDS (J/ApJ/830/10): table1.dat table3.dat table5.dat table6.dat table7.dat table8.dat>

Nomenclature: Tables 3+5: [HMR2016] ANNNN NNNNNNN N=1095+1956. Table 7: [HMR2016] ANNNN HNNNa N=171, [HMR2016] ANNNN NNN N=14,[HMR2016] N3982 HNN (Nos N3982 HN1-N3982 HN2).

Simbad objects: 2409

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