J/ApJ/746/85 THe HST Cluster Supernova Survey. V. (Suzuki+, 2012)
The Hubble Space Telescope Cluster Supernova Survey.
V. Improving the dark-energy constraints above z > 1 and building an
early-type-hosted supernova sample.
Suzuki N., Rubin D., Lidman C., Aldering G., Amanullah R., Barbary K.,
Barrientos L.F., Botyanszki J., Brodwin M., Connolly N., Dawson K.S.,
Dey A., Doi M., Donahue M., Deustua S., Eisenhardt P., Ellingson E.,
Faccioli L., Fadeyev V., Fakhouri H.K., Fruchter A.S., Gilbank D.G.,
Gladders M.D., Goldhaber G., Gonzalez A.H., Goobar A., Gude A., Hattori T.,
Hoekstra H., Hsiao E., Huang X., Ihara Y., Jee M.J., Johnston D.,
Kashikawa N., Koester B., Konishi K., Kowalski M., Linder E.V., Lubin L.,
Melbourne J., Meyers J., Morokuma T., Munshi F., Mullis C., Oda T.,
Panagia N., Perlmutter S., Postman M., Pritchard T., Rhodes J., Ripoche P.,
Rosati P., Schlegel D.J., Spadafora A., Stanford S.A., Stanishev V.,
Stern D., Strovink M., Takanashi N., Tokita K., Wagner M., Wang L.,
Yasuda N., Yee H.K.C., Project T.S.C.
<Astrophys. J., 746, 85 (2012)>
=2012ApJ...746...85S 2012ApJ...746...85S
ADC_Keywords: Photometry, HST ; Supernovae ; Redshifts ; Infrared sources
Keywords: cosmological parameters - distance scale - supernovae: general
Abstract:
We present Advanced Camera for Surveys, NICMOS, and Keck
adaptive-optics-assisted photometry of 20 Type Ia supernovae (SNe Ia)
from the Hubble Space Telescope (HST) Cluster Supernova Survey. The
SNe Ia were discovered over the redshift interval 0.623<z<1.415. Of
these SNe Ia, 14 pass our strict selection cuts and are used in
combination with the world's sample of SNe Ia to derive the best
current constraints on dark energy. Of our new SNe Ia, 10 are beyond
redshift z = 1, thereby nearly doubling the statistical weight of
HST-discovered SNe Ia beyond this redshift. Our detailed analysis
corrects for the recently identified correlation between SN Ia
luminosity and host galaxy mass and corrects the NICMOS zero point at
the count rates appropriate for very distant SNe Ia. Adding these SNe
improves the best combined constraint on dark-energy density,
ρDE(z), at redshifts 1.0<z<1.6 by 18% (including systematic
errors).
Description:
The HST Cluster Supernova Survey (described in details in Dawson et
al. 2009AJ....138.1271D 2009AJ....138.1271D) targeted 25 high-redshift galaxy clusters in
the redshift range 0.9<z<1.5 with the Advanced Camera for Surveys
(ACS) camera on board HST, between 2005 July and 2006 December.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 75 20 Supernova from the HST Cluster Supernova Survey
table2.dat 78 236 Photometry data for 15 supernovae
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See also:
B/hst : HST Archived Exposures Catalog (STScI, 2007)
J/ApJ/745/31 : HST Cluster Supernova Survey. VI. SNIa rate (Barbary+, 2012)
J/ApJS/200/12 : CfA4: light curves for 94 type Ia SNe (Hicken+, 2012)
J/AJ/142/156 : The CSP (DR2): photometry of SNe Ia (Stritzinger+, 2011)
J/ApJ/716/712 : HST light curves of six SNe and Union2 (Amanullah+, 2010)
http://supernova.lbl.gov/2009ClusterSurvey/ : Supernova cosmology project
page for the HST Cluster Supernova Survey
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 I1 --- Set [1/5] SN classification (1)
3- 10 A8 --- Name SN designation (SCPYYANN) (2)
11 A1 --- f_Name [d] d: spectroscopically confirmed as SN Ia
13- 21 A9 --- Nname Nickname of the SN
23- 27 F5.3 --- z [0.623/1.44]? Redshift (3)
29- 33 F5.3 --- zCl [0.974/1.457] Redshift from cluster (4)
35- 36 I2 h RAh Hour of right ascension (J2000)
38- 39 I2 min RAm Minute of right ascension (J2000)
41- 46 F6.3 s RAs Second of right ascension (J2000)
48 A1 --- DE- Sign of declination (J2000)
49- 50 I2 deg DEd Degree of declination (J2000)
52- 53 I2 arcmin DEm Arcminute of declination (J2000)
55- 59 F5.2 arcsec DEs Arcsecond of declination (J2000)
61- 65 F5.3 mag E(B-V) [0.009/0.026] Galactic extinction from
Schlegel et al. (1998ApJ...500..525S 1998ApJ...500..525S)
67- 75 A9 --- Conf Confidence ("Secure", "Probable" or "Plausible")
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Note (1): Classification as follows:
1 = SN hosted by cluster early-type galaxies
2 = SN hosted in the cluster
3 = SN hosted by early-type non-cluster members
4 = SN hosted by late-type galaxies
5 = SN with no definitive redshift measurement
Note (2): We labeled each of our 25 clusters with a letter from "A" to "Z"
(excluding "O" to avoid confusion with zero) and assigned SN names as
"SCP"+[discovery year]+[discovered cluster]+[SN ID].
Note (3): Redshift from SNe Ia or host galaxy (Morokuma et al.
2010PASJ...62...19M 2010PASJ...62...19M; Barbary et al. 2012ApJ...745...32B 2012ApJ...745...32B (Paper II);
Meyers et al. 2012ApJ...750....1M 2012ApJ...750....1M (Paper III)).
Note (4): Meyers et al. 2012ApJ...750....1M 2012ApJ...750....1M and references therein.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name SN name (SCPYYANN)
10- 15 A6 --- Inst Instrument used (ACS, NICMOS or NIRC2)
17- 22 A6 --- Filter Filter used (F110W, F775W, F850LP or H)
24- 32 F9.3 d MJD Modified Julian Date
34- 40 F7.4 ct/s Flux [-0.278/11.901] Flux count in Filter (1)
42- 47 F6.4 ct/s e_Flux [0.010/0.533] Error in Flux (1)
49- 54 F6.3 mag Zero [23.02/25.44] Vega magnitude zeropoint
56- 60 I5 s Exp [175/10240] Total exposure time
62- 63 I2 --- Num [1/60] Number of exposures
65- 71 F7.4 ct/s RFlux [-0.113/3.917]? F850LP filter 3-pixel-radius
flux counts (2)
73- 78 F6.4 ct/s e_RFlux [0.026/0.125]? Error in RFlux (2)
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Note (1): Corrected for CTE and color-dependent aperture correction (for ACS)
and the count rate non-linearity (for NICMOS). For the ACS F850LP
filter, z850, this is the result of the iterative Method I in
Appendix A.
Note (2): CTE corrected but not aperture-corrected flux for the ACS F850LP data.
This flux column is used as an input for the modified filter
Method II in Appendix A. Note we use the modified filter response
curve and shifted zeropoint as described in Appendix A.
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History:
From electronic version of the journal
References:
Dawson et al. Paper I. 2009AJ....138.1271D 2009AJ....138.1271D
Barbary et al. Paper II. 2012ApJ...745...32B 2012ApJ...745...32B
Meyers et al. Paper III. 2012ApJ...750....1M 2012ApJ...750....1M
Ripoche et al. Paper IV. ApJ, submitted
Barbary et al. Paper VI. 2012ApJ...745...31B 2012ApJ...745...31B Cat. J/ApJ/745/31
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 06-Aug-2013