Results 71 to 80 of about 683 (187)

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

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

SO in starburst galaxies

The Astrophysical Journal, 1992
The use of SO and SO2 as probes of the dense interstellar medium in the nearby starburst galaxies NGC 253 and M82 is described. Emission in the 99.3 GHz 3(2) - 2(1) rotational transition of SO was detected in NGC 253 and possibly in M82, and upper limits are reported for emission in the 219.9 GHz 6(5) - 5(4) transition of SO and two lines of SO2.
S. J. Petuchowski, C. L. Bennett
openaire   +1 more source

The Calibration of Polycyclic Aromatic Hydrocarbon Dust Emission as a Star Formation Rate Indicator in the AKARI NEP Survey

The Astrophysical Journal
Polycyclic aromatic hydrocarbon (PAH) dust emission has been proposed as an effective extinction-independent star formation rate (SFR) indicator in the mid-infrared, but this may depend on conditions in the interstellar medium.
Helen Kyung Kim, Matthew A. Malkan, Toshinobu Takagi, Nagisa Oi, Denis Burgarella, Takamitsu Miyaji, Hyunjin Shim, Hideo Matsuhara, Tomotsugu Goto, Yoichi Ohyama, Veronique Buat, Seong Jin Kim   +11 more
doaj   +1 more source

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

Starburst galaxies in the Hydra I cluster

Astronomy & Astrophysics
Studying the impact of environment on star formation and quenching pathways requires statistically relevant samples of galaxies in a wide mass range. We present a new catalog of 196 galaxies of the nearby Hydra I cluster out to ∼1.75r200, consisting of ...
de la Casa Clara C., Hess Kelley M., Verdes-Montenegro Lourdes, Kotulla Ralf, Chen Hao, Jarrett Tom H., Cluver Michelle E., De Daniloff Simon B., Gendron-Marsolais Marie-Lou, Carignan Claude, Gallagher III John S., Kraan-Korteweg Renée C., Ianjamasimanana Roger   +12 more
doaj   +1 more source

Low Dust Mass and High Star Formation Efficiency at z > 12 from Deep ALMA Observations

The Astrophysical Journal
We investigate the dust mass buildup and star formation efficiency of two galaxies at z  > 12—GHZ2 and GS-z14-0—by combining Atacama Large Millimeter/submillimeter Array and JWST observations with an analytical model that assumes dust at thermal ...
Ikki Mitsuhashi, Jorge A. Zavala, Tom J. L. C. Bakx, Akio K. Inoue, Marco Castellano, Antonello Calabrò, Caitlin M. Casey, Maximilien Franco, Bunyo Hatsukade, Nimish P. Hathi, Ryota Ikeda, Anton M. Koekemoer, Jeyhan Kartaltepe, Kirsten K. Knudsen, Paola Santini, Toshiki Saito, Elena Terlevich, Roberto Terlevich, L. Y. Aaron Yung   +18 more
doaj   +1 more source

H.E.S.S. observations of composite Seyfert–starburst galaxies

Astronomy & Astrophysics
Context. Composite galaxies that contain both Seyfert and starburst components may produce very high-energy (VHE; > 100 GeV) γ-ray emission at a wide range of spatial scales, from a few Schwarzschild radii of a supermassive black hole (SMBH; RS = 10−6 pc
Acharyya A., Aharonian F., Ashkar H., Backes M., Barbosa Martins V., Batzofin R., Becherini Y., Berge D., Böttcher M., Boisson C., Bolmont J., Borowska J., Brun F., Bruno B., Burger-Scheidlin C., Casanova S., Celic J., Cerruti M., Chandra S., Chen A., Chernyakova M., Chibueze J. O., Chibueze O., Colafrancesco S., Collins T., Cornejo B., Cotter G., Damascene Mbarubucyeye J., de Assis Scarpin J., de Bony de Lavergne M., de Naurois M., de Oña Wilhelmi E., Delgado Giler A. G., Djannati-Ataï A., Djuvsland J., Dmytriiev A., Ebrahim R., Egg K., Escañuela Nieves C., Feijen K., Filipovic M. D., Fontaine G., Funk S., Gabici S., Glicenstein J. F., Glombitza J., Goswami P., Grondin M.-H., Hess B., Hinton J. A., Holch T. L., Holler M., Horns D., Jamrozy M., Jankowsky F., Jung-Richardt I., Kasai E., Kasprzak K., Katarzyński K., Kerszberg D., Khélifi B., Komin N., Kosack K., Kostunin D., Lang R. G., Lazarević S., Lefranc V., Lenain J.-P., Liniewicz P., Luashvili A., Mackey J., Malyshev D., Malyshev D., Marandon V., Marchegiani P., Mayer M., Mehta A., Mitchell A. M. W., Moderski R., Moghadam M. O., Mohrmann L., Moulin E., Niemiec J., O’Brien P., Olivera-Nieto L., Panny S., Panter M., Parsons R. D., Pensec U., Prokhorov D. A., Pühlhofer G., Punch M., Quirrenbach A., Regeard M., Reimer A., Reimer O., Ren H., Rieger F., Rudak B., Sabri K., Sahakian V., Salzmann H., Sasaki M., Schüssler F., Shapopi J. N. S., Si Said W., Spencer S., Stawarz Ł., Steinmassl S., Tanaka T., Taylor A. M., Terrier R., Tsirou M., Unbehaun T., van Eldik C., Vecchi M., Venter C., Vink J., Wach T., Wierzcholska A., Zech A., Zhong W.   +121 more
doaj   +1 more source

Formation and Evolution of E+A Galaxies in Dusty Starburst Galaxies

The Astrophysical Journal, 2001
The formation and evolution of the ``E+A'' (also named ``k+a'' and ``a+k'' types by Dressler et al. 1999) galaxies found in significant numbers in the cores of intermediate redshift clusters has been extensively discussed by many authors. In this paper, we model the spectral, dynamical and morphological evolution of a prime candidate for producing this
Bekki, Kenji, Shioya, Yasuhiro, Couch, William J.   +2 more
openaire   +3 more sources

SHELLQs-JWST Unveils the Host Galaxies of 12 Quasars at z > 6

The Astrophysical Journal
The advent of the James Webb Space Telescope (JWST) has opened new horizons in the study of quasar host galaxies during the reionization epoch ( z  > 6).
Xuheng Ding, Masafusa Onoue, John D. Silverman, Yoshiki Matsuoka, Takuma Izumi, Michael A. Strauss, Lilan Yang, Knud Jahnke, Camryn L. Phillips, Tommaso Treu, Irham T. Andika, Kentaro Aoki, Junya Arita, Shunsuke Baba, Sarah E. I. Bosman, Anna-Christina Eilers, Seiji Fujimoto, Zoltan Haiman, Masatoshi Imanishi, Kohei Inayoshi, Kazushi Iwasawa, Jeyhan Kartaltepe, Nobunari Kashikawa, Toshihiro Kawaguchi, Junyao Li, Chien-Hsiu Lee, Alessandro Lupi, Jan-Torge Schindler, Malte Schramm, Kazuhiro Shimasaku, Marko Shuntov, Takumi S. Tanaka, Yoshiki Toba, Benny Trakhtenbrot, Hideki Umehata, Marianne Vestergaard, Feige Wang, Jinyi Yang   +37 more
doaj   +1 more source