Zobrazeno 1 - 10
of 69
pro vyhledávání: '"I. S. Glass"'
Autor:
I. S. Glass
Publikováno v:
Transactions of the Royal Society of South Africa. 63:197-201
The Office Administrator, Sandra de Villiers-Soltynski, is thanked for her efficient administrative services to the Council and membership. We wish to thank all the chairpersons and committee members of Branches for voluntarily giving of their skills
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87fff013c186f66b32b0e18d2cebbfb3
https://doi.org/10.1080/00359190809519230
https://doi.org/10.1080/00359190809519230
Autor:
I. S. Glass, F.E. van Leeuwen
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 378:1543-1549
Period-luminosity sequences have been shown to exist among the Semi-Regular Variables (SRVs) in the Magellanic Clouds (Wood et al, 1999), the Bulge of the Milky Way galaxy (Glass & Schultheis, 2003) and elsewhere. Using modern period and revised Hipp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d05a4db8447857ecbe1308b9d3d62d07
https://doi.org/10.1111/j.1365-2966.2007.11903.x
https://doi.org/10.1111/j.1365-2966.2007.11903.x
Autor:
I. S. Glass
Publikováno v:
Transactions of the Royal Society of South Africa. 62:47-54
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd1ff70a051cc40b3b7ca63ea87899c1
https://doi.org/10.1080/00359190709519201
https://doi.org/10.1080/00359190709519201
Autor:
I. S. Glass
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 350:1049-1066
Long-term (up to 10000d) monitoring has been undertaken for 41 Seyferts in the near-IR (JHKL). All but 2 showed variability, with K ampl in the range 1.1 mags. The timescale for detectable change is from about one week to a few years. A simple cross-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15ad192aa0e412f693a03a9b91622b25
https://doi.org/10.1111/j.1365-2966.2004.07712.x
https://doi.org/10.1111/j.1365-2966.2004.07712.x
Autor:
O. C. de Jager, R. S. Stobie, I. S. Glass, D. Kilkenny, Donal O'Donoghue, Chris Koen, Ramotholo Sefako
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 309:1043-1050
In an attempt to discover new southern BL Lac objects, 14 optically featureless objects from the Edinburgh–Cape Survey were selected. Optical polarimetry and spectroscopy, radio and IR observations were carried out in order to improve their classif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c639d3b85336b3934b8e88025dc4fd6
https://doi.org/10.1046/j.1365-8711.1999.02927.x
https://doi.org/10.1046/j.1365-8711.1999.02927.x
Publikováno v:
Symposium - International Astronomical Union. 191:523-528
A second report on our 4-year survey for long-period variables (LPVs) in the central 24 × 24 arcmin2 of the Galactic Bulge is presented. All four seasons of data have now been reduced and ∼ 350 variables have been found. Preliminary periods have b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17dc25abe28e6e3529b21374aa782957
https://doi.org/10.1017/s0074180900203501
https://doi.org/10.1017/s0074180900203501
Publikováno v:
Symposium - International Astronomical Union. 192:81-84
Two of the five cocoon stars in the “Quintuplet” cluster of young, luminous objects, located about 30 pc in projection from the Galactic Centre, are variables. The nearby “Pistol Star”, also called the “Serendipitous Star”, and a similar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b2cfed20dba4347e5a922b617831c12
https://doi.org/10.1017/s0074180900203938
https://doi.org/10.1017/s0074180900203938
Autor:
I. S. Glass
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 297:18-22
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11e5315a961bc5f15f34be740c3f5b20
https://doi.org/10.1046/j.1365-8711.1998.01429.x
https://doi.org/10.1046/j.1365-8711.1998.01429.x
Autor:
J. W. Menzies, I. S. Glass
Publikováno v:
Astrophysics and Space Science. 235:175-183
A brief description is given of the optical and infrared instruments that are most commonly used on the telscsopes at Sutherland.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f605aea27fe50e93bcf00764bad543a
https://doi.org/10.1007/bf00644438
https://doi.org/10.1007/bf00644438
Publikováno v:
Symposium - International Astronomical Union. 167:109-116
A large-format PtSi array (effectively 1k × 0.5k pixels) has been incorporated into an infrared camera intended for survey work using the 0.75-m telescope at Sutherland. The array is very uniform and almost free of cosmetic defects. The camera, its
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b39229d32605f3789e10d23c0d139b33
https://doi.org/10.1017/s0074180900056345
https://doi.org/10.1017/s0074180900056345