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News Release Archive:

News Release 428 of 885

April 10, 2003 09:00 AM (EDT)

News Release Number: STScI-2003-12

Far-Flung Supernovae Shed Light on Dark Universe

Technical facts about this news release:

About the Object

Object Name:	SN2002dd
Object Description:	Supernova Type Ia in Hubble Deep Field North
Position (J2000):	R.A. 12h 36m 55.36s Dec. +62° 12' 46.1"
Constellation:	Ursa Major
Distance:	2.4 billion parsecs (8 billion light-years)
Redshift	z = 0.95

About the Data

Data Description:	These observations are from the HST proposals 9301 (H. Ford and collaborators) and 9352 (A. Riess (STScI) and collaborators). The science team for the SN2002dd results include: J.P. Blakeslee (JHU), Z.I. Tsvetanov (JHU), A. Riess (STScI), H.C. Ford (JHU), G.D. Illingworth (UCO/Lick Obs.), D. Magee (Lick Obs./UCSC), J. Tonry (IfA/Univ. Hawaii), N. Benitez (JHU), M. Clampin (STScI), G.F. Hartig (STScI), G.R. Meurer (JHU), M. Sirianni (JHU), D.R. Ardila (JHU), F. Bartko (Bartko Science & Technology), R.J. Bouwens (UCO/Lick Obs.), T.J. Broadhurst (Racah Institute of Physics, The Hebrew University), N.J.G. Cross (JHU), P.D. Feldman (JHU), M. Franx (Leiden Observatory), D.A.Golimowski (JHU), C. Gronwall (PSU), R.A. Kimble (NASA GSFC), J.E. Krist (STScI), A.R. Martel (JHU), F. Menanteau (JHU), G.K. Miley (Leiden Obs.), M. Postman (STScI), P. Rosati (ESO), W.B. Sparks (STScI), L.-G. Strologer (STScI), H.D. Tran (JHU), R.L. White (STScI/JHU), and W. Zheng (JHU).
Instruments and Filters:	ACS/WFC: F775W (SDSS i), G800L (grism), F850LP (SDSS z) NICMOS: F110W (J)
Exposure Date(s):	2002: May 11, May 21, June 13, June 24

About the Image

Image Credit:	NASA and J.P. Blakeslee (JHU)
Release Date:	April 10, 2003
Orientation: