J/ApJ/613/200 Hubble Higher z Supernova Search, HHZSS (Strolger+, 2004)
The Hubble Higher z Supernova Search: supernovae to z ∼ 1.6 and constraints
on type Ia progenitor models.
Strolger L.-G., Riess A.G., Dahlen T., Livio M., Panagia N., Challis P.,
Tonry J.L., Filippenko A.V., Chornock R., Ferguson H., Koekemoer A.,
Mobasher B., Dickinson M., Giavalisco M., Casertano S., Hook R., Bondin S.,
Leibundgut B., Nonino M., Rosati P., Spinrad H., Steidel C.C., Stern D.,
Garnavich P.M., Matheson T., Grogin N., Hornschemeier A., Kretchmer C.,
Laidler V.G., Lee K., Lucas R., De Mello D., Moustakas L.A.,
Ravindranath S., Richardson M., Taylor E.
<Astrophys. J., 613, 200-223 (2004)>
=2004ApJ...613..200S 2004ApJ...613..200S
ADC_Keywords: Supernovae ; Redshifts ; Photometry
Keywords: supernovae: general - surveys
Abstract:
We present results from the Hubble Higher z Supernova Search, the
first space-based open field survey for supernovae (SNe). In
cooperation with the Great Observatories Origins Deep Survey, we have
used the Hubble Space Telescope with the Advanced Camera for Surveys
to cover ∼300arcmin2 in the area of the Chandra Deep Field South and
the Hubble Deep Field North on five separate search epochs (separated
by ∼45day intervals) to a limiting magnitude of F850LP∼26. These deep
observations have allowed us to discover 42 SNe in the redshift range
0.2<z<1.6. As these data span a large range in redshift, they are
ideal for testing the validity of Type Ia supernova progenitor models
with the distribution of expected "delay times" from progenitor star
formation to Type Ia SN explosion, and the SN rates these models
predict. Through a Bayesian maximum likelihood test, we determine
which delay-time models best reproduce the redshift distribution of
SNe Ia discovered in this survey. We find that models that require a
large fraction of "prompt" (less than 2Gyr) SNe Ia poorly reproduce
the observed redshift distribution and are rejected at greater than
95% confidence. We find that Gaussian models best fit the observed
data for mean delay times in the range of 2-4Gyr.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 102 42 HHZSS+GOODS Supernovae
table2.dat 35 110 HST Photometry
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See also:
J/ApJ/600/L93 : GOODS initial results (Giavalisco+, 2004)
J/ApJ/600/L99 : Colours of z∼6 galaxies in GOODS (Dickinson+, 2004)
J/ApJ/607/665 : Type Ia supernovae at z>1 discovered by HST (Riess+, 2004)
J/ApJ/602/571 : High-redshift supernovae IRZ fluxes (Barris+, 2004)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- SN Supernova Name
8 A1 --- n_SN [ab] Note on OName (1)
9- 19 A11 --- OName Nickname
21- 32 A12 "Y:M:D" Date UT date of discovery (YY/MM/DD.d)
35- 36 I2 h RAh Hour of right ascension (J2000.0)
38- 39 I2 min RAm Minute of right ascension (J2000.0)
41- 45 F5.2 s RAs Second of right ascension (J2000.0)
48 A1 --- DE- Sign of declination (J2000.0)
49- 50 I2 deg DEd Degree of declination (J2000.0)
52- 53 I2 arcmin DEm Arcminute of declination (J2000.0)
55- 58 F4.1 arcsec DEs Arcsecond of declination (J2000.0)
61- 62 A2 --- Type Physical SN type
65- 70 A6 --- f_Type Type confidence (2)
73- 76 F4.2 --- z ? Redshift
79- 86 A8 --- n_z Source of measured redshift
89- 93 F5.2 arcsec oDEs ? Arcsecond of offset in declination (3)
96-100 F5.2 arcsec oRAs ? Second of offset in right ascension (3)
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Note (1): Note on OName, defined as follows:
a = No host galaxies were detected for SNe 2002fv and 2003bd to within the
magnitude limits of the survey;
b = SN 2002hs has at least two neighboring galaxies, the closest of which
had a phot-z=1.1 and the other of which had a spectroscopically
measured z=0.39. Light-curve fits to the photometry showed that it
was less consistent with any SN type at z∼1.1 and more consistent with
an SN Ib/c at z=0.39.
Note (2): Each discovered SN was given an identity rank reflecting the
confidence in the identification defined as follows:
Gold = highest confidence that the SN was the stated type, and it was not
likely that the SN could have been some other SN type;
Silver = the identity was quite confident, but the SN lacked sufficient
corroborating evidence to be considered gold;
Bronze = there was evidence the SN type was correct, but there was a
significant possibility that the SN type was incorrect.
Note (3): Offsets are given from the center of the host galaxy to supernova.
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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- 6 A6 --- SN Supernova designation
8- 13 A6 --- Filter Filter
15- 24 F10.2 d Date Julian Date of observation
26- 30 F5.2 mag mag Vega-based magnitude in Filter
32- 35 F4.2 mag e_mag Photometric error in mag
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History:
From electronic version of the journal
References:
Riess et al., 1998AJ....116.1009R 1998AJ....116.1009R
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 10-Mar-2005