Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Gösta F. Gahm"'
Autor:
Gösta F. Gahm, K. N. Grankin, A. A. Djupvik, T. R. Irsmambetova, P. P. Petrov, V. I. Shenavrin, S. A. Artemenko, E. V. Babina, J. F. Gameiro, David Mkrtichian, R. M. G. de Albuquerque, M. Fernandez, S. Yu. Gorda
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
Mon. Not. R. Astron. Soc.
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 483 (1), pp.132-146. ⟨10.1093/mnras/sty3066⟩
instname
Mon. Not. R. Astron. Soc.
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 483 (1), pp.132-146. ⟨10.1093/mnras/sty3066⟩
Classical T Tauri stars with ages of less than 10 Myr possess accretion discs. Magnetohydro-dynamic processes at the boundary between the disc and the stellar magnetosphere control the accretion and ejections gas flows. We carried out a long series o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4783d94db2f4d8950d4b0214ac7236d4
http://hdl.handle.net/10261/189369
http://hdl.handle.net/10261/189369
Publikováno v:
Astronomy & Astrophysics. 645:A36
An intriguing silhouette of a small dust patch can be seen against the disk of the S0 galaxy NGC 3269 in the Antlia cluster in optical images. The images do not provide any clue as to whether the patch is a local Jupiter mass-scale cloudlet or a larg
The Rosette Nebula is an HII region ionized mainly by the stellar cluster NGC 2244. Elephant trunks, globules, and globulettes are seen at the interface where the HII region and the surrounding molecular shell meet. We have observed a field in the no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8fe54da66ca8dd991136d464642c331
From existing broad-band images obtained with the Hubble Space Telescope, we located 92 globules, for which we derived positions, dimensions, orientations, extinctions, masses, proper motions, and their distributions. The globules have mean radii ran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b9f63f47f37d9907bbf1a83d45c1521
Autor:
Larisa Tambovtseva, O. Barsunova, Gösta F. Gahm, H. C. Stempels, S. G. Sergeev, Vladimir Grinin, A. A. Arkharov
Publikováno v:
Astronomy & Astrophysics. 489:1233-1238
The unusual pre-main-sequence star V718 Per : Photometry and spectroscopy across the eclipse
Publikováno v:
The Astronomical Journal. 133:1795-1809
Some H II regions surrounding young stellar clusters contain tiny dusty clouds, which on photos look like dark spots or teardrops against a background of nebular emission. From our collection of H? images of 10 H II regions gathered at the Nordic Opt
Context. RW Aur A is a classical T Tauri star (CTTS) with an unusually rich emission line spectrum. In 2014 the star faded by ~ 3 magnitudes in the V band and went into a long-lasting minimum. In 2010 the star suffered from a similar fading, although
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc5bafb29daf4ef24f226a2712ebb9d0
Publikováno v:
Astronomy & Astrophysics. 454:201-212
Aims. We investigate the structure and velocity of cold molecular pillars, "elephant trunks", in expanding HII regions. Methods. The trunks are seen in silhouette against the bright background in our Ha images. All trunks are filamentary, and show si
Autor:
J. A. Valenti, Gregory J. Herczeg, F. M. Walter, David R. Ardila, Alexander Brown, Jeffrey L. Linsky, Gösta F. Gahm, C. M. Johns-Krull, Michal Simon
Publikováno v:
The Astronomical Journal. 129:2777-2791
We present far-ultraviolet spectra of the classical T Tauri star RU Lupi covering the 912-1710 A spectral range, as observed by the HST/STIS and FUSE satellites. We use these spectra, which are rich in emission and absorption lines, to probe both the
Publikováno v:
Astronomy & Astrophysics. 602:A61
The Carina nebula hosts a large number of globulettes. The majority are of planetary mass, but there are also those with masses of several tens up to a few hundred Jupiter masses. We carried out radio observations of molecular line emission in 12CO a