NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-24 T01:04:53 PDT
Help | Comment | NED Home

For refcode 2012ApJ...758L..12S:
Retrieve 115 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
2012ApJ...758L..12S The Mid-infrared Tully-Fisher Relation: Calibration of the Type Ia Supernova Scale and H_0_ Sorce, Jenny G.; Tully, R. Brent; Courtois, Helene M. Abstract. This Letter builds on a calibration of the Type Ia supernova (SNIa) absolute distance scale begun with a core of distances based on the correlation between galaxy rotation rates and optical I_C_ -band photometry. This new work extends the calibration through the use of mid-infrared photometry acquired at 3.6 micron with the Spitzer Space Telescope. The great virtue of the satellite observations is the constancy of the photometry at a level better than 1% across the sky. The new calibration is based on 39 individual galaxies and 8 clusters that have been the sites of well-observed SNIa. The new 3.6 micron calibration is not yet as extensively based as the I_C_ -band calibration but is already sufficient to justify a preliminary report. Distances based on the mid-infrared photometry are 2% greater in the mean than reported at the I_C_ band. This difference is only marginally significant. The I_C_ -band result is confirmed with only a small adjustment. Incorporating a 1% decrease in the Large Magellanic Cloud distance, the present study indicates H_0_ = 75.2 +/- 3.0 km s^-1^ Mpc^-1^. Key words: cosmological parameters, galaxies: distances and redshifts, galaxies: photometry, infrared: galaxies
Retrieve 115 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home