Star formation in low density HI gas around the elliptical galaxy NGC 2865
نویسندگان
چکیده
منابع مشابه
Star formation , metallicity gradient and ionized gas : clues to the formation of the elliptical galaxies NGC 6868 and NGC 5903
The stellar population, metallicity distribution and ionized gas in the elliptical galaxies NGC6868 and NGC5903 are investigated in this paper by means of long-slit spectroscopy and stellar population synthesis. Lick indices in both galaxies present a negative gradient indicating an overabundance of Fe, Mg, Na and TiO in the central parts with respect to the external regions. We found that Mg2 ...
متن کاملNuclear star formation in the hot - spot galaxy NGC 2903
We present high-resolution near-infrared imaging obtained using adaptive optics and HST/NICMOS, and ground-based spectroscopy of the hot-spot galaxy NGC 2903. Our near-infrared resolution imaging enables us to resolve the infrared hot spots into individual young stellar clusters or groups of these. The spatial distribution of the stellar clusters is not coincident with that of the bright H ii r...
متن کاملRadial Gas Flows and Star Formation in the Ringed Galaxy NGC 4736
We analyze the gas kinematics and star formation properties of the nearby RSab galaxy NGC 4736 using interferometric and single-dish CO(1-0) data and previously published Hα and H I data. The CO morphology is dominated by a central molecular bar and tightly wound spiral arms corresponding to a bright ring of star formation. Strong H I emission is also found in the ring, but H I is absent from t...
متن کاملNuclear Bar, Star Formation and Gas Fueling in the Active Galaxy Ngc 4303
A combination of Hubble Space Telescope (HST) WFPC2 and NICMOS images are used to investigate the gas/dust and stellar structure inside the central 300 pc of the nearby active galaxy NGC 4303. The NICMOS H-band (F160W) image reveals a bright core and a nuclear elongated bar-like structure of 250 pc in diameter. The bar is centered on the bright core, and its major axis is oriented in proyection...
متن کاملNon - Circular Gas Kinematics and Star Formation in the Ringed Galaxy Ngc 4736
We analyze the gas kinematics and star formation properties of the nearby RSab galaxy NGC 4736 using interferometric and single-dish CO(1-0) data and previously published Hα and H I data. The CO morphology is dominated by a central molecular bar and tightly wound spiral arms associated with a bright ring of star formation. Strong H I emission is also found in the ring, but H I is absent from th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2017
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201731032