Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Vladas Vansevičius"'
Autor:
Rima Stonkutė, Vladas Vansevičius
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 273, Iss 2, p 22 (2024)
We have surveyed the complete extent of the disk of M33—a gas-rich low-mass dwarf spiral galaxy in the Local Group. The B- , V- , and I -passband (the Johnson–Cousins system) CCD images (typical seeing ∼0.″8) were obtained with the Subaru Tel
Externí odkaz:
https://doaj.org/article/d1ed9bd798234913ba606fa47a3e1d81
Publikováno v:
Proceedings of the International Astronomical Union. 14:131-134
We performed a new integrated photometry in six passbands on HST M31 PHAT survey mosaics of 1181 star clusters spread over a large range of radial distance. Due to strongly varying background we interactively determined its level based on image and g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70aafb93983874b9738c5cee78bde003
https://doi.org/10.1017/s1743921319007300
https://doi.org/10.1017/s1743921319007300
Publikováno v:
Astronomy & Astrophysics. 660:A79
Context.Leo A is a gas-rich dwarf irregular galaxy of low stellar mass and metallicity. Its star formation history extends up to ∼10 Gyr. A few prominent H II regions indicate that star formation processes are active in the galaxy to this day. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::629a2a3c66bb1d218a69926b722260d9
https://doi.org/10.1051/0004-6361/202142743
https://doi.org/10.1051/0004-6361/202142743
Autor:
Rima Stonkutė, Vladas Vansevičius
Publikováno v:
Astrophysical journal supplement series, Bristol : IOP publishing Ltd., 2022, vol. 259, iss. 1, art. no. 6, p. [1-5]
We have surveyed the complete extent of Leo A, which is an apparently isolated Local Group dwarf irregular galaxy, in B, V, R, I (the Johnson–Cousins system), and NA656 (centered on Hα) passbands with the Subaru Telescope equipped with the Suprime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02cca021573230e07716283f0d1497f9
https://doi.org/10.3847/1538-4365/ac5119
https://doi.org/10.3847/1538-4365/ac5119
Leo A is an isolated gas-rich dwarf irregular galaxy of low stellar mass and metallicity residing at the outskirts of the Local Group. Ages of the stellar populations in Leo A range from $\sim$10 Myr to $\sim$10 Gyr. So far, only one star cluster has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20e4036ca9fe4a42986717d793af3e82
Publikováno v:
Astronomy & Astrophysics. 647:A170
Context. Leo A is a gas-rich dwarf irregular galaxy of low stellar mass located in the outskirts of the Local Group. It has an extended star formation history with stellar populations spanning a wide age range (∼0.01−10 Gyr). As Leo A is a well-i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c2b22170285b802f317e7d1bdbaa4ed
https://doi.org/10.1051/0004-6361/202037967
https://doi.org/10.1051/0004-6361/202037967
We present a new method to derive 2D star formation histories in dwarf irregular galaxies. Based on multicolor stellar photometry data we have found that in the Leo A galaxy during the last $\sim$400 Myr star formation was propagating according to th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7f3bbabc07fcfcc287aaf4b2f936fe0
http://arxiv.org/abs/1810.08045
http://arxiv.org/abs/1810.08045
We analysed a population of bright-red (BR) stars in the dwarf irregular galaxy Leo A by using multicolour photometry data obtained with the Subaru/Suprime-Cam ($B$, $V$, $R$, $I$, $H\alpha$) and HST/ACS ($F475W$ & $F814W$) instruments. In order to s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a076507f4b6a01f6213869d53323727
We have studied young stellar populations and star clusters in the dwarf irregular galaxy Leo A using multicolor ($B$, $V$, $R$, $I$, $H\alpha$) photometry data obtained with the Subaru Suprime-Cam and two-color photometry results measured on archiva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a44dbbf7bc8835677b082c80906c4161
Publikováno v:
Open Astronomy, Vol 24, Iss 3, Pp 293-297 (2015)
We report a serendipitous discovery of a star cluster in the dwarf irregular galaxy Leo A. Young age (~28 Myr) and low mass (~510 M⊙) estimates are based on the isochrone fit assuming a metallicity derived for HII regions (Z = 0.0007). The color-ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12b8d974e4bce36b14e92c7743c940f7
https://doaj.org/article/709dda6307104d399a752994fa00755a
https://doaj.org/article/709dda6307104d399a752994fa00755a