Research NoteIs SBS 0335-052 a young galaxy?
نویسندگان
چکیده
منابع مشابه
Hst Observations of the Blue Compact Dwarf Sbs 0335–052: a Probable Young Galaxy
We present HST WFPC2 V and I images and GHRS UV spectrophotometry of the spectral regions around Lyα and OI λ1302 of the extremely metal-deficient ( Z ∼ Z⊙/41 ) blue compact dwarf (BCD) galaxy SBS 0335–052. All the star formation in the BCD occurs in six superstar clusters (SSC) with ages ≤ 3-4 Myr. As there is no evident sign of tidal interaction, star formation in the BCD is probably triggere...
متن کاملThe Extraordinary Mid-infrared Spectrum of the Blue Compact Dwarf Galaxy Sbs 0335 052
SBS0335-052 is a blue compact dwarf galaxy (BCD) with one of the lowest known metallicities, Z∼Z⊙/41, making it a local example of how primordial starburst galaxies and their precursors might appear. A spectrum obtained with the Infrared Spectrograph (IRS) on the Spitzer Space Telescope clearly shows silicate absorption features, emission lines of [SIV] and [NeIII], and puts strong upper limits...
متن کامل2 00 8 Super Star Clusters in SBS 0335 - 052
As one of the lowest metallicity star forming galaxies, with a nucleus of several super star clusters, SBS0335-052E is the subject of substantial current study.
متن کاملDeep spectroscopy of the low - metallicity blue compact dwarf galaxy SBS 0335 – 052 ⋆
The results of deep long-slit spectroscopy of the extremely low-metallicity blue compact dwarf (BCD) galaxy SBS 0335–052 are presented. Down to intensity levels of 10 of Hβ, unprecedented for spectroscopy of extra-galactic giant H ii regions, we detect numerous weak permitted and forbidden nebular lines in the brightest part of the galaxy. With varying degrees of confidence, the detections incl...
متن کاملVLT / GIRAFFE spectroscopic observations of the metal - poor blue compact dwarf galaxy SBS 0335 – 052 E ⋆ ⋆ ⋆
Aims. We present two-dimensional spectroscopy of the extremely metal-deficient blue compact dwarf (BCD) galaxy SBS 0335–052E aiming to study physical conditions, element abundances and kinematical properties of the ionised gas in this galaxy. Methods. Observations were obtained in the spectral range λ3620 – 9400Å with the imaging spectrograph GIRAFFE installed on the UT2 of the Very Large Teles...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2001
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20010326