Výsledky vyhledávání - "Tsvetkov, M. K."

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Wide-Field Plate Archive of the University Observatory Jena

Autor: Poghosyan, A. V., Pfau, W., Tsvetkova, K. P., Mugrauer, M., Tsvetkov, M. K., Hambaryan, V. V., Neuhaeuser, R., Kalaglarsky, D. G.

We present the archive of the wide-field plate observations obtained at the University Observatory Jena, which is stored at the Astrophysical Institute of the Friedrich Schiller University Jena. The archive contains plates taken in the period Februar

Externí odkaz: http://arxiv.org/abs/1404.2401

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Optical photometric and spectral study of the new FU Orionis object V2493 Cyg (HBC 722)

Autor: Semkov, E. H., Peneva, S. P., Munari, U., Tsvetkov, M. K., Jurdana-Sepic, R., de Miguel, E., Schwartz, R. D., Dimitrov, D. P., Kjurkchieva, D. P., Radeva, V. S.

We present new results from optical photometric and spectroscopic observations of the eruptive pre-main sequence star V2493 Cyg (HBC 722). The object has continued to undergo significant brightness variations over the past few months and is an ideal

Externí odkaz: http://arxiv.org/abs/1205.2532

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Aperture Photometry of Saturated Star Images from Digitised Photographic Plates

Autor: Innis, J. L., Coates, D. W., Borisova, A. P., Tsvetkov, M. K.

Saturated stellar images on digitised photographic plates are many times greater in area than the `seeing disk' seen in unsaturated CCD images. Indeed the flux profile of a bright star can be traced out for several degrees from the star's centre. The

Externí odkaz: http://arxiv.org/abs/astro-ph/0502411

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Archival light curves from the Bamberg Sky Patrol - CFOctantis, 1964-1976

Autor: Innis, J. L., Borisova, A. P., Coates, D. W., Tsvetkov, M. K.

Publikováno v: Mon.Not.Roy.Astron.Soc. 355 (2004) 591-600

We use the archive of the Bamberg Sky Patrol to obtain light curves of the active K subgiant CF Octantis for the interval 1964-1976. Digitised images of the field near CF Oct were obtained with a flat-bed scanner. Aperture photometry was performed of

Externí odkaz: http://arxiv.org/abs/astro-ph/0409082

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