Search
Now showing items 1-10 of 10
Two more candidate AM Canum Venaticorum (AM CVn) Binaries from the Sloan Digital Sky Survey
(American Astronomical Society - The Astronomical Journal, 2008-06)
AM CVn systems are a select group of ultracompact binaries with the shortest
orbital periods of any known binary subclass; mass-transfer is likely from a
low-mass (partially-)degenerate secondary onto a white dwarf ...
First-Year spectroscopy for the SDSS-II Supernova Survey
(American Astronomical Society - The Astronomical Journal, 2008-05)
This paper presents spectroscopy of supernovae discovered in the first season
of the Sloan Digital Sky Survey-II Supernova Survey. This program searches
for and measures multi-band light curves of supernovae in the ...
The Sloan Digital Sky Survey-II Supernova Survey: search Algorithm and follow-up observations
(American Astronomical Society - The Astronomical Journal, 2008-01)
The Sloan Digital Sky Survey-II Supernova Survey has identified a large number
of new transient sources in a 300 deg2 region along the celestial equator during
its first two seasons of a three-season campaign. Multi-band ...
The Sloan Digital Sky Survey-II Supernova Survey: technical summary
(American Astronomical Society - The Astronomical Journal, 2008-01)
The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to
identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae
(SNe Ia) using repeated five-band (ugriz) ...
Exploring the variable sky with the Sloan Digital Sky Survey
(American Astronomical Society - The Astronomical Journal, 2007-12)
We quantify the variability of faint unresolved optical sources using a catalog
based on multiple SDSS imaging observations. The catalog covers SDSS Stripe
82, which lies along the celestial equator in the Southern ...
The Sloan Digital Sky Survey Monitor Telescope Pipeline
(Wiley InterScience: Astronomische Nachrichten, 2006-11)
The photometric calibration of the Sloan Digital Sky Survey (SDSS) is a multi-step process which involves data from
three different telescopes: the 1.0-m telescope at the US Naval Observatory (USNO), Flagstaff Station, ...
Ultracompact AM CVn Binaries from the Sloan Digital Sky Survey: three candidates plus the first confirmed Eclipsing System
(American Astronomical Society - The Astronomical Journal, 2005-11)
AM CVn systems are a rare (about a dozen previously known) class of cataclysmic variables, arguably
encompassing the shortest orbital periods (down to about 10 minutes) of any known binaries.
Both binary components are ...
An X-ray outburst from the rapidly accreting young star that illuminates McNeil's Nebula
(Nature, 2004-07-22)
Young, low-mass stars are luminous X-ray sources1 whose powerful X-ray flares^(2-6)
may exert a profound influence over the process of planet formation^(7). The origin
of such emission is uncertain. Although many or ...
A large, uniform sample of X-ray emitting AGN from the ROSAT All-Sky and Sloan Digital Sky Surveys: the Data Release 5 Sample
(American Astronomical Society - The Astronomical Journal, 2003-11)
We describe further results of a program aimed to yield ∼104 fully characterized optical
identifications of ROSAT X-ray sources. Our program employs X-ray data from the ROSAT
All-Sky Survey (RASS), and both optical imaging ...
A large, uniform sample of X-ray emitting AGN: selection approach and an initial catalog from the ROSAT All-Sky and Sloan Digital Sky Surveys
(American Astronomical Society - The Astronomical Journal, 2003-11)
Many open questions in X-ray astronomy are limited by the relatively small number
of objects in uniform optically-identified and observed samples, especially when rare
subclasses are considered, or when subsets are ...