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A NEW DISTANCE TO THE ANTENNAE GALAXIES (NGC 4038/39) BASED ON THE TYPE Ia SUPERNOVA 2007sr*
Traditionally, the distance to NGC 4038/39 has been derived from the systemic recession velocity, yielding about 20 Mpc for H 0 = 72 km s?1 Mpc?1. Recently, this widely adopted distance has beenExpand
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Correlations between UBV colors and fine structure in E and S0 galaxies: A First attempt at dating ancient merger events
A study of 69 E and S0 galaxies located mostly in the field and in groups reveals that the UBV colors become systematically bluer at any given luminosity as the amount of merger-induced fineExpand
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Hubble space telescope observations of young star clusters in NGC-4038/4039, 'the antennae' galaxies
New, high-resolution images of the disks of NGC 4038/4039 obtained with the Wide Field Camera of the Hubble Space Telescope (HST) are presented. NGC 4038/4039, nicknamed The Antennae, is aExpand
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THE ANTENNAE GALAXIES (NGC 4038/4039) REVISITED: ADVANCED CAMERA FOR SURVEYS AND NICMOS OBSERVATIONS OF A PROTOTYPICAL MERGER
The Advanced Camera for Surveys and the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) have been used to obtain new Hubble Space Telescope images of NGC 4038/4039 ('The Antennae'). TheseExpand
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Colliding and merging galaxies. I. Evidence for the recent merging of two disk galaxies in NGC 7252
This paper presents first results from a photographic, spectroscopic, and photometric study of the ''Atoms-for-Peace'' galaxy.
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Ages and Metallicities of Young Globular Clusters in the Merger Remnant NGC 7252
Ultraviolet-to-visual spectra of eight young star clusters in the merger remnant and protoelliptical galaxy NGC 7252, obtained with the 4 m Blanco Telescope on Cerro Tololo, are presented. TheseExpand
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