843 new variable stars in the Small Magellanic Cloud
نویسندگان
چکیده
منابع مشابه
Kinematics of massive stars in the Small Magellanic Cloud
We present radial velocities for 2045 stars in the Small Magellanic Cloud (SMC), obtained from the 2dF survey by Evans et al. (2004). The great majority of these stars are of OBA type, tracing the dynamics of the young stellar population. Dividing the sample into ad hoc ‘bar’ and ‘wing’ samples (north and south, respectively, of the line: δ = −77◦50′ + [4α]′, where α is in minutes of time) we f...
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The Small Magellanic Cloud (SMC) is an excellent laboratory to study the formation of solar-mass stars in a low-metallicity environment, similar to the conditions expected in the early phases of galactic evolution. Here we present preliminary results from a search for low-mass pre-main-sequence stars in the SMC based on Hubble Space Telescope archival data. Candidates are selected on the basis ...
متن کاملA Quest for PMS candidate stars at low metallicity: Variable HAe/Be and Be stars in the Small Magellanic Cloud
We report the discovery of 5 new Herbig Ae/Be candidate stars in the Small Magellanic Cloud in addition to the 2 reported in Beaulieu et al. (2001). We discuss these 7 HAeBe candidate stars in terms of (1) their irregular photometric variability, (2) their near infrared emission, (3) their Hα emission and (4) their spectral type. One star has the typical photometric behaviour that is observed o...
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We observed a field in the disk of the LMC on two consecutive nights in search of rapid variable stars. We have found two pulsating stars of type RRab and δ Sct, and four binary stars, among the latter one sdB or CV below the LMC blue Main Sequence and three very close binary systems on the MS. At least one of the MS binaries, and possibly all three, are the first solar-type (W UMa-type) contac...
متن کاملNew X-ray quasars behind the Small Magellanic Cloud
We present five X-ray quasars behind the Small Magellanic Cloud, increasing the number of known quasars behind the SMC by ∼40%. They were identified via follow-up spectroscopy of serendipitous sources from the Chandra X-ray Observatory matched with objects from the OGLE database. All quasars lie behind dense parts of the SMC, and could be very useful for proper motion studies. We analyze X-ray ...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1905
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.19051682408