J/ApJ/529/723 VI photometry of Cepheids (Gibson+, 2000)
The Hubble space telescope key project on the extragalactic distance scale.
XXV. A recalibration of Cepheid distances to type Ia supernovae and the value of
the Hubble constant.
Gibson B.K., Stetson P.B., Freedman W.L., Mould J.R., Kennicutt R.C.Jr,
Huchra J.P., Sakai S., Graham J.A., Fassett C.I., Kelson D.D., Ferrarese L.,
Hughes S.M.G., Illingworth G.D., Macri L.M., Madore B.F., Sebo K.M.,
Silbermann N.A.
<Astrophys. J. 529, 723 (2000)>
=2000ApJ...529..723G 2000ApJ...529..723G
ADC_Keywords: Stars, variable ; Photometry
Mission_Name: HST
Keywords: Cepheids - distance scale - galaxies: distances and redshifts -
supernovae: general
Abstract:
Cepheid-based distances to seven Type Ia supernovae (SNe) host
galaxies have been derived using the standard Hubble Space Telescope
(HST) Key Project on the Extragalactic Distance Scale pipeline. For
the first time, this allows for a transparent comparison of data
accumulated as part of three different HST projects: the Key Project,
the Sandage et al. Type Ia supernovae (SNe) program, and the Tanvir et
al. Leo I Group study. Reanalyzing the Tanvir et al. galaxy and six
Sandage et al. galaxies, we find a mean (weighted) offset in true
distance moduli of 0.12±0.07mag; i.e., 6% in linear distance, in the
sense of reducing the distance scale or increasing H0. Adopting the
reddening-corrected Hubble relations of Suntzeff et al. tied to a zero
point based on SNe 1990N, 1981B, 1998bu, 1989B, 1972E, and 1960F and
the photometric calibration of Hill et al. leads to a Hubble constant
of H0=68±2(random)±5(systematic)km/s/Mpc. Adopting the Kennicutt
et al. Cepheid period-luminosity-metallicity dependency decreases the
inferred H0 by 4%. The H0 result from Type Ia SNe is now in good
agreement, to within their respective uncertainties, with that from
the Tully-Fisher and surface brightness fluctuation relations.
Objects:
----------------------------------------------------------
RA (2000) DE Designation(s)
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13 05 49.6 +37 36 18 IC 4182
10 46 45.7 +11 49 16 NGC 3368
11 20 15.1 +12 59 29 NGC 3627
12 31 39.3 +03 56 23 NGC 4496A
12 34 27.3 +02 11 18 NGC 4536
12 42 51.8 +13 15 26 NGC 4639
13 39 55.3 -31 38 25 NGC 5253
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File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
appen.dat 62 232 Properties of Cepheids detected
--------------------------------------------------------------------------------
See also:
J/ApJ/463/26 : Extragalactic Distance Scale Key Project. III (Kelson+ 1996)
J/ApJ/507/655 : VI photometry of new Cepheids in NGC 2541 (Ferrarese+, 1998)
J/ApJ/512/48 : VI photometry of new Cepheids in NGC 4725 (Gibson+, 1999)
J/ApJ/514/614 : VI photometry of new Cepheids in NGC 3198 (Kelson+, 1999)
J/ApJ/521/155 : New Cepheids and distance to NGC 4535 (Macri+, 1999)
J/ApJ/523/540 : VI photometry of new Cepheids in NGC 3319 (Sakai+, 1999)
Byte-by-byte Description of file: appen.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Cluster Cluster name
11- 13 A3 --- CNN Cepheid number in the cluster (1)
15 I1 --- Chip ? Chip number
17- 22 F6.1 pix Xpos X pixel position
24- 29 F6.1 pix Ypos Y pixel position
31- 35 F5.2 mag Vmag ALLFRAME V magnitude
37- 40 F4.2 mag e_Vmag rms uncertainty on Vmag
42- 46 F5.2 mag Imag ALLFRAME I magnitude
48- 51 F4.2 mag e_Imag rms uncertainty on Imag
53- 57 F5.2 d Per TRIAL period
59- 62 F4.2 d e_Per rms uncertainty on Pmag
--------------------------------------------------------------------------------
Note (1): In Simbad, [GSF2000] Cluster CNN.
--------------------------------------------------------------------------------
History: From ApJ electronic version
References:
Freedman et al., Paper I 1994ApJ...427..628F 1994ApJ...427..628F
Hughes et al., Paper II 1994ApJ...428..143H 1994ApJ...428..143H
Kelson et al., Paper III 1996ApJ...463...26K 1996ApJ...463...26K, Cat. J/ApJ/463/26
Ferrarese et al., Paper IV 1996ApJ...464..568F 1996ApJ...464..568F
Silbermann et al., Paper VI 1996ApJ...470....1S 1996ApJ...470....1S
Graham et al., Paper VII 1997ApJ...477..535G 1997ApJ...477..535G
Rawson et al., Paper VIII 1997ApJ...490..517R 1997ApJ...490..517R
Phelps et al., Paper IX 1998ApJ...500..763P 1998ApJ...500..763P
Hughes et al., Paper X 1998ApJ...501...32H 1998ApJ...501...32H
Turner et al., Paper XI 1998ApJ...505..207T 1998ApJ...505..207T
Ferrarese et al., Paper XII 1998ApJ...507..655F 1998ApJ...507..655F, Cat. J/ApJ/507/655
Kennicutt et al., Paper XIII 1998ApJ...498..181K 1998ApJ...498..181K
Silbermann et al., Paper XIV 1999ApJ...515....1S 1999ApJ...515....1S
Madore et al., Paper XV 1999ApJ...515...29M 1999ApJ...515...29M
Stetson et al., Paper XVI 1998ApJ...508..491S 1998ApJ...508..491S
Gibson et al., Paper XVII 1999ApJ...512...48G 1999ApJ...512...48G
Macri et al., Paper XVIII 1999ApJ...521..155M 1999ApJ...521..155M, Cat. J/ApJ/521/155
Kelson et al., Paper XIX 1999ApJ...514..614K 1999ApJ...514..614K
Graham et al., Paper XX 1999ApJ...516..626G 1999ApJ...516..626G
Mould et al., Paper XXI 2000ApJ...528..655M 2000ApJ...528..655M
Prosser et al., Paper XXII 1999ApJ...525...80P 1999ApJ...525...80P
Sakai et al., Paper XXIII 1999ApJ...523..540S 1999ApJ...523..540S, Cat. J/ApJ/523/540
Sakai et al., Paper XXIV 2000ApJ...529..698S 2000ApJ...529..698S
Ferrarese et al., Paper XXVI 2000ApJ...529..745F 2000ApJ...529..745F
Kelson et al., Paper XXVII 2000ApJ...529..768K 2000ApJ...529..768K
Mould et al., Paper XXVIII 2000ApJ...529..786M 2000ApJ...529..786M
(End) James Marcout, Patricia Bauer [CDS] 28-Mar-2000