Results 91 to 100 of about 34,388 (227)

Dynamics of starbursting dwarf galaxies: I Zw 18 [PDF]

Astronomy & Astrophysics, 2012
I Zw 18 is a prototype Blue Compact Dwarf (BCD), characterized by a strong starburst and extremely low metallicity (Z ~ 0.02 Zsun). It has long been considered a candidate young galaxy in the Local Universe, but recent studies indicate the presence of old stars. We analysed archival VLA observations of the 21 cm line and found that the HI associated to
F. Lelli, M. Verheijen, FRATERNALI, FILIPPO, R. Sancisi   +3 more
openaire   +4 more sources

Search for Blue Compact Dwarf Galaxies During Quiescence

, 2008
Blue Compact Dwarf (BCD) galaxies are metal poor systems going through a major starburst that cannot last for long. We have identified galaxies which may be BCDs during quiescence (QBCD), i.e., before the characteristic starburst sets in or when it has ...
Beltrametti M., C. Muñoz‐Tuñón, Ciotti L., Davies J. I., Efstathiou G., G. Tenorio‐Tagle, J. A. Aguerri, J. Sánchez Almeida, Madau P., Mas-Hesse J. M., Papaderos P., R. Amorín, R. Sánchez‐Janssen, Sage L. J., Staveley-Smith L., Telles E., Terlevich E., Terlevich R., Tinsley B. M.   +18 more
core   +1 more source

The IRX-beta relation on sub-galactic scales in star-forming galaxies of the Herschel Reference Survey [PDF]

, 2012
UV and optical surveys are essential to gain insight into the processes driving galaxy formation and evolution. The rest-frame UV emission is key to measure the cosmic SFR. However, UV light is strongly reddened by dust.
A. Boselli, A. Cooray, Abazajian, Anders, Aniano, Barnes, Bell, Boissier, Boquien, Boquien, Boquien, Boselli, Boselli, Boselli, Boselli, Boselli, Boselli, Bouwens, Buat, Buat, Buat, Buat, Burgarella, Burgarella, C. Pappalardo, Calzetti, Calzetti, Calzetti, Calzetti, Cardelli, Charlot, Chary, Conroy, Cortese, Cortese, Dale, Dale, Davé, G. Gavazzi, G. J. Bendo, Gavazzi, Gil de Paz, Giovannoli, Gordon, Gordon, Griffin, H. L. Gomez, Hao, Haynes, Hopkins, Johnson, Kauffmann, Kennicutt, Kewley, Kitzbichler, Kong, Kramer, L. Ciesla, L. Cortese, L. Spinoglio, Leroy, M. Baes, M. Boquien, M. Pohlen, M. W. L. Smith, Madau, Magnelli, Magnelli, Maraston, Martin, Meurer, Muñoz-Mateos, Noll, Noll, Overzier, O’Donnell, Panuzzo, Pilbratt, Pérez-González, Reddy, Rieke, Rodighiero, Rudolph, Rupke, Rupke, S. Eales, Schiminovich, Schlegel, Seibert, Skrutskie, Steidel, V. Buat, V. Lebouteiller, van der Burg, Walcher, Wijesinghe, Wild, Witt   +97 more
core   +6 more sources

SQuIGG E: Buried Star Formation Cannot Explain the Rapidly Fading CO(2–1) Luminosity in Massive, z ∼ 0.7 Post-starburst Galaxies

The Astronomical Journal
Observational and theoretical studies have long held that rapid gas consumption in starbursts is responsible for the formation of the most massive quiescent galaxies at high redshift.
David J. Setton, Justin S. Spilker, Rachel Bezanson, Katherine A. Suess, Jenny E. Greene, Andy D. Goulding, Elia Cenci, Vincenzo R. D’Onofrio, Robert Feldmann, Mariska Kriek, Anika Kumar, Yuanze Luo, Desika Narayanan, Margaret E. Verrico, Pengpei Zhu   +14 more
doaj   +1 more source

Revisiting the Gas Dynamics of Henize 2–10: Possible Drivers of the Starburst

The Astrophysical Journal
The triggers of starburst episodes are a key component to our understanding of the baryon cycle in galaxies. Galaxy mergers are a commonly suggested catalyst for starbursts, but once the galaxies coalesce into a single kinematically disturbed system ...
Josephine M. Dalsin, Allison H. Costa, Remy Indebetouw, Kelsey E. Johnson, Natalie O. Butterfield, Sabrina Stierwalt   +5 more
doaj   +1 more source

$^{13}CO(J = 1 -- 0)$ Depression in Luminous Starburst Mergers

, 1998
It is known that the class of luminous starburst galaxies tends to have higher $R =^{12}CO(J=1--0)/^{13}CO(J=1--0)$ integrated line intensity ratios ($R>20$) than normal spiral galaxies ($R \sim 10$). Since most previous studies investigated only $R$, it
Aalto S., Aalto S., Becker R., Casoli F., Casoli F., Casoli F., Freeman K. C., Garay G., Henkel C., Henkel C., Henkel C., Sage L. J., Wiklind T., Yoshiaki Taniguchi, Youichi Ohyama   +14 more
core   +1 more source

The UV properties of E+A galaxies: constraints on feedback-driven quenching of star formation [PDF]

, 2007
We present the first large-scale study of E+A (post-starburst) galaxies that incorporates photometry in the ultraviolet (UV) wavelengths. We find that the starburst that creates the E+A galaxy typically takes place within the last Gyr and creates a high ...
Bekki, Bell, Belloni, Bernardi, Blake, Bondi, Bower, Bressan, Brinchmann, Buyle, Chang, Couch, Cowie, Dressler, Fabricant, Ferrarese, Fukugita, Galaz, Gebhardt, Goto, Goto, Goto, Goto, Häring, J. Silk, Kauffmann, Kauffmann, Kaviraj, Kaviraj, Kennicutt, L. A. Kirkby, Liu, Liu, M. Sarzi, Martin, Mihos, Miller, Norton, Poggianti, Poggianti, Quintero, S. Kaviraj, Sanders, Shankar, Smail, Tran, Tremonti, Wang, Yang, Yi, Yi, Zabludoff   +51 more
core   +2 more sources

Dating Starburst and Post-Starburst Galaxies

, 1999
Contribution to the workshop "Spectrophotometric Dating of Stars and Galaxies" Annapolis Maryland, 25-29 April ...
openaire   +2 more sources

GALACTIC WINDS IN IRREGULAR STARBURST GALAXIES [PDF]

, 2001
In this paper we present some results concerning the study of the development of galactic winds in blue compact galaxies. In particular, we model a situation very similar to that of the galaxy IZw18, the most metal poor and unevolved galaxy known locally.
Matteucci, F., Recchi, S.
openaire   +2 more sources

Equivalent width Measurements in Optical Spectra of Galaxies in Local Clusters: Hints On the Star Formation History in Clusters

Open Astronomy, 2011
Equivalent widths of spectral lines in the optical spectra of galaxies are commonly used to characterize their stellar populations and to get some insight on their evolution.
Fritz Jacopo, Poggianti Bianca M., Cava Antonio, Moretti Alessia   +3 more
doaj   +1 more source