Search Results - "Glass, I. S"
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Towards stellar effective temperatures and diameters at 1 per cent accuracy for future surveys
Published in Monthly notices of the Royal Astronomical Society (01-04-2014)“…The apparent size of stars is a crucial benchmark for fundamental stellar properties such as effective temperatures, radii and surface gravities. While…”
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Long-term infrared photometry of Seyferts
Published in Monthly notices of the Royal Astronomical Society (21-05-2004)“…Long-term (up to 10 000 d) monitoring has been undertaken for 41 Seyferts in the near-infrared (1.25–3.45 μm). All but two showed variability, with amplitudes…”
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Semiregular variables in the solar neighbourhood
Published in Monthly notices of the Royal Astronomical Society (11-07-2007)“…Period–luminosity sequences have been shown to exist among the semiregular variables (SRVs) in the Magellanic Clouds, the bulge of the Milky Way galaxy and…”
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The Nature of the Nuclear H2O Masers of NGC 1068: Reverberation and Evidence for a Rotating Disk Geometry
Published in The Astrophysical journal (01-08-2001)Get full text
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Infrared stellar populations in the central parts of the Milky Way galaxy
Published in Monthly notices of the Royal Astronomical Society (01-02-2003)“…ABSTRACT Near‐ and mid‐IR survey data from DENIS and ISOGAL are used to investigate the structure and formation history of the inner 10° (1.4 kpc) of the Milky…”
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The calibrating stars of the Mira P—L relation
Published in Monthly notices of the Royal Astronomical Society (21-07-2003)“…Improved light curves extracted from the MACHO data base are used to discuss the periods and amplitudes of the calibrating stars of the Mira P–L relations…”
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Large-amplitude variables near the Galactic Centre
Published in Monthly notices of the Royal Astronomical Society (11-02-2001)“…Abstract We report here the results of a 4-yr K-band (2.2 μm) survey for large-amplitude variable stars in a area centred on the Galactic Centre. A total of…”
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Period—magnitude relations for M giants in Baade's Window NGC 6522
Published in Monthly notices of the Royal Astronomical Society (11-10-2003)“…A large and complete sample of stars with K < 9.75 in the NGC 6522 Baade's Window towards the Galactic bulge is examined using light curves extracted from…”
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Variability of Seyfert galaxies in the near-infrared — II. The unusual starburst Seyfert NGC 7469
Published in Monthly notices of the Royal Astronomical Society (11-06-1998)“…The bright Seyfert 1 and starburst galaxy NGC 7469 has been monitored at JHKL for 13 yr. Its variations have been small, amounting to less than 0.3 mag, except…”
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Asymptotic giant branch variables in Baade's Windows
Published in Monthly notices of the Royal Astronomical Society (11-11-2001)“…In this work, a sample of luminous M-type giants in the Baade's Windows towards the inner Galactic bulge is investigated in the near-infrared. The ISOGAL…”
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A period–luminosity–colour relation for Mira variables
Published in Monthly notices of the Royal Astronomical Society (01-12-1989)“…Time-averaged J, H, K and mbol magnitudes are given for 29 O-rich and 20 C-rich Mira variables in the Large Magellanic Cloud. PL and PC relations are derived…”
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Mass-losing Semiregular Variable Stars in Baade's Windows
Published in The Astrophysical journal (01-05-2001)“…By cross-correlating the results of two recent large-scale surveys, the general properties of a well defined sample of semi-regular variable stars have been…”
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Variability of Seyfert galaxies in the near-infrared. I - An outburst in NGC 2992
Published in Monthly notices of the Royal Astronomical Society (01-12-1997)“…The IR light curve of the Seyfert 1.9 galaxy NGC 2992 shows a strong outburst between JD 244 7243 and 244 8734 of total energy 6 x 10 exp 43 J and having an…”
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ISOGAL survey of Baade's Windows in the mid-infrared
Published in Monthly notices of the Royal Astronomical Society (01-09-1999)“…The ISOGAL mid-infrared survey of areas close to the Galactic plane aims to determine the stellar content of those areas, and its possible bearing on the…”
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Mid-infrared period–magnitude relations for AGB stars
Published in Monthly notices of the Royal Astronomical Society (01-05-2009)“…Asymptotic giant branch (AGB) variables are found to obey period–luminosity relations in the mid-infrared (mid-IR) similar to those seen at KS (2.14 μm), even…”
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The variability of Magellanic cluster infrared stars
Published in Monthly notices of the Royal Astronomical Society (21-03-2000)“…We report on the light variations of the infrared stars that were discovered recently in the Magellanic clusters NGC 419, 1783 and 1978. Their periods, of 528,…”
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Infrared variability of the Seyfert galaxy NGC 3783
Published in Monthly notices of the Royal Astronomical Society (01-05-1992)“…The results of about 15 years of monitoring of the variable Seyfert 1 galaxy NGC 3783 in the infrared are presented. The spectrum of the variable component…”
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Duration of the superwind phase of asymptotic giant branch stars
Published in Nature (London) (06-02-1997)“…The discovery of two infrared stars in Magellanic Cloud globular clusters that are undergoing a period of intense mass loss is discussed. Observations confirm…”
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Variability studies of Seyfert galaxies – I. Broad-band optical photometry
Published in Monthly notices of the Royal Astronomical Society (15-08-1992)“…We present the results of a four-year campaign to monitor the variations of 35 southern Seyfert galaxies, using $UBV(RI)_\text C multi-aperture photometry…”
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Luminous variables in the Quintuplet cluster
Published in Monthly notices of the Royal Astronomical Society (21-03-1999)“…We report observations of variability amongst the stars of the ‘Quintuplet’ cluster located about 30 pc in projection from the centre of the Galaxy. Two of the…”
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