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- Australian National UniversityAU880 papers
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46 papers · 2 filters
Optical Spectropolarimetry of the GRB 020813 Afterglow
A. J. Barth, R. Sari, M. H. Cohen +6
The optical afterglow of gamma-ray burst 020813 was observed for 3 hours with the LRIS spectropolarimeter at the Keck-I telescope, beginning 4.7 hours after the burst was detected…
The Parkes quarter-Jansky flat-spectrum sample 2. New Optical Spectra and Redshift Measurements
I. M. Hook, P. A. Shaver, C. A. Jackson +2
We present optical spectra and redshift measurements for 178 flat-spectrum objects from the Parkes quarter-Jansky flat-spectrum sample. These spectra were obtained in order to comp…
Isolated Star Formation: A Compact HII Region in the Virgo Cluster
Ortwin Gerhard, Magda Arnaboldi, Kenneth C. Freeman +1
We report on the discovery of an isolated, compact HII region in the Virgo cluster. The object is located in the diffuse outer halo of NGC 4388, or could possibly be in intracluste…
SN1999E: Another piece in the SN-GRB connection puzzle
L. Rigon, M. Turatto, S. Benetti +8
Detailed optical and near-IR observations of SN 1999E have confirmed early suggestions that this supernova was indeed a twin of the peculiar type II SN 1997cy: it was exceptionally…
Candidates for Intracluster Planetary Nebulae in the Virgo Cluster based on the Suprime-Cam Narrow-Band Imaging in O[III] and Halpha
S. Okamura, N. Yasuda, M. Arnaboldi +17
We have identified 38 candidates of intracluster planetary nebulae (ICPNe) in a field in the core of the Virgo cluster based on the Suprime-Cam imaging through two n…
Narrow band imaging in [OIII] and Halpha to search for ICPNe in the Virgo cluster
M. Arnaboldi, K. C. Freeman, S. Okamura +17
We have identified intracluster planetary nebulae in a Virgo cluster core field by imaging with the Subaru Suprime-Cam through two narrow band filters centered at the redshifted wa…