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Differentiation of the asteroid Ceres as revealed by its shape
TLDR
A New Spectral Classification System for the Earliest O Stars: Definition of Type O2
- N. Walborn, I. Howarth, J. Parker
- Physics
- 1 May 2002
High-quality, blue-violet spectroscopic data are collected for 24 stars that have been classified as type O3 and that display the hallmark N IV and N V lines. A new member of the class is presented;…
The Pluto system: Initial results from its exploration by New Horizons
- S. Stern, F. Bagenal, E. Zirnstein
- Geology, PhysicsScience
- 16 October 2015
TLDR
SN 1991bg - A type Ia supernova with a difference
- B. Leibundgut, R. Kirshner, G. Sonneborn
- Physics
- 1993
We present 13 spectra and 31 photometric observations covering the first 150 days of SN 1991bg in NGC 4374 (M 84). Although SN 1991bg was a type Ia supernova displaying the characteristic Si II…
The stellar content of NGC 346: A plethora of O stars in the SMC
- P. Massey, J. Parker, C. Garmany
- Physics
- 1 October 1989
The stellar content of NGC 346, the largest and brightest H II region in the SMC, was investigated using the results of CCD UBV photometry and spectroscopy. Spectra of 42 blue stars were classified,…
Photometric analysis of 1 Ceres and surface mapping from HST observations
- Jian-Yang Li, L. McFadden, M. Sykes
- Physics, Geology
- 1 May 2006
The stellar content of LH 9 and 10 (N11) in the LMC - A case for sequential star formation
- J. Parker, C. Garmany, P. Massey, N. Walborn
- Physics
- 1 April 1992
The young OB associations Lucke-Hodge 9 and 10 are studied with UBV photometry that is independent of reddening to determine the IMF directly from star counts. The temperature and reddening of the…
HST/FOS Spatially Resolved Spectral Classification of Compact OB Groups in the Large Magellanic Cloud*
- N. Walborn, L. Drissen, J. Parker, A. Saha, J. MacKenty, R. White
- Physics
- 1 October 1999
Blue-violet spectrograms of individual components in four compact OB groups of the Large Magellanic Cloud, obtained with the Hubble Space Telescope (HST) Faint Object Spectrograph (FOS), are…
The small satellites of Pluto as observed by New Horizons
- H. Weaver, M. Buie, A. Zangari
- Geology, PhysicsScience
- 18 March 2016
TLDR
Ultraviolet Imaging Telescope Observations of the Magellanic Clouds
- J. Parker, Jesse K. Hill, T. Stecher
- Physics
- 1 July 1998
We present wide-field far-ultraviolet (FUV; 1300–1800 A) images of the Large and Small Magellanic Clouds (LMC, SMC). These data were obtained by the Ultraviolet Imaging Telescope (UIT) during the…
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