Results 121 to 130 of about 113,123 (219)

Emission line galaxies at z = 6.5

, 2003
2 pages, no figures, to be published in "Multiwavelength mapping of galaxy formation and evolution", proceedings of a conference held in Venice, October 13-16 2003, one typographic error ...
Kurk, Jaron, Cimatti, Andrea, Alighieri, Sperello di Serego, Vernet, Joel, Daddi, Emanuele   +4 more
openaire   +2 more sources

Strongly star forming galaxies in the local Universe with nebular He II 4686 emission

, 2012
We present a sample of 2865 emission line galaxies with strong nebular He II 4686 emissions in Sloan Digital Sky Survey Data Release 7 and use this sample to investigate the origin of this line in star-forming galaxies. We show that star-forming galaxies
Abazajian, Allen, Anders, Baldwin, Bergeron, Binette, Brinchmann, Brinchmann, Bruzual, Cantiello, Charlot, Charlot, Conti, Crowther, Crowther, Crowther, Crowther, Dopita, Dopita, Eldridge, Eldridge, Eldridge, Eldridge, Ferland, Gallazzi, Gallazzi, Garnett, Gräfener, Guseva, Hadfield, Hillier, Hoare, Izotov, Izotov, Jarle Brinchmann, Kauffmann, Kehrig, Kehrig, Kewley, Kewley, Kewley, Kniazev, Legrand, Leitherer, Leitherer, López-Sánchez, Maeder, Maryam Shirazi, Meynet, Monreal-Ibero, Neugent, Pauldrach, Pettini, Schaerer, Schaerer, Smith, Stasińska, Stasińska, Terlevich, Thuan, Tremonti, Yoon, Yoon, York   +63 more
core   +1 more source

Iron emission line from the spiral galaxy M 101 [PDF]

Publications of the Astronomical Society of Japan, 2015
Abstract Archival Suzaku data of the face-on spiral galaxy M 101 were analyzed. An intense emission line at 6.72$^{+0.10}_{-0.12}\:$keV was detected in the central region. This line is identified with a K-line from He-like iron, which indicates the existence of a thin thermal plasma with a temperature of several keV.
openaire   +2 more sources

Impact of active galactic nuclei and nuclear star formation on the ISM turbulence of galaxies: Insights from JWST/MIRI spectroscopy

Astronomy & Astrophysics
Active galactic nuclei (AGNs), star formation (SF), and galaxy interactions can drive turbulence in the gas of the interstellar medium (ISM), which, in turn, plays a role in SF taking place within galaxies.
Riffel Rogemar A., Colina Luis, Costa-Souza José Henrique, Mainieri Vincenzo, Santaella Miguel Pereira, Dors Oli L., García-Bernete Ismael, Alonso-Herrero Almudena, Audibert Anelise, Bellocchi Enrica, Bunker Andrew J., Campbell Steph, Combes Françoise, Davies Richard I., Díaz-Santos Tanio, Donnan Fergus R., Esposito Federico, García-Burillo Santiago, García-Lorenzo Begoña, Martín Omaira González, Haidar Houda, Hicks Erin K. S., Hoenig Sebastian F., Imanishi Masatoshi, Labiano Alvaro, Lopez-Rodriguez Enrique, Packham Christopher, Almeida Cristina Ramos, Rigopoulou Dimitra, Rosario David, Souza-Oliveira Gabriel Luan, Martín Montserrat Villar, Veenema Oscar, Zhang Lulu   +33 more
doaj   +1 more source

Metal-poor Star-forming Clumps in Cosmic Noon Galaxies: Evidence for Gas Inflow and Chemical Dilution Using JWST NIRISS

The Astrophysical Journal
The formation and evolution of galaxies are intricately linked to the baryon cycle, which fuels star formation while shaping chemical abundances within galaxies.
Vicente Estrada-Carpenter, Marcin Sawicki, Roberto Abraham, Yoshihisa Asada, Maruša Bradač, Gabe Brammer, Guillaume Desprez, Kartheik G. Iyer, Nicholas S. Martis, Adam Muzzin, Gaël Noirot, Gregor Rihtaršič, Ghassan T. E. Sarrouh, Chris J. Willott, Jeremy Favaro, Vladan Markov, Rosa M. Mérida, Katherine Myers, Visal Sok   +18 more
doaj   +1 more source

Resolving the molecular gas emission of the z ∼ 2.5–2.8 starburst galaxies SPT 0125-47 and SPT 2134-50

Astronomy & Astrophysics
Context. The comoving cosmic star formation rate density peaks at z ∼ 2–3, with dusty star-forming galaxies being significant contributors to this peak.
Kade K., Bredberg M., Knudsen K., König S., Drouart G., Romeo A. B., Bakx T. J. L. C.   +6 more
doaj   +1 more source

Relativistic jets in narrow-line Seyfert 1 galaxies. New discoveries and open questions

EPJ Web of Conferences, 2013
Before the launch of the Fermi satellite only two classes of AGNs were known to produce relativistic jets and thus emit up to the γ-ray energy range: blazars and radio galaxies, both hosted in giant elliptical galaxies.
D’Ammando F., Orienti M., Finke J., Larsson J., Giroletti M.   +4 more
doaj   +1 more source

Emission-line Diagnostics at z > 4: [O iii]λ4364/Hγ versus [Ne iii]λ3870/[O ii]λ3730

The Astrophysical Journal
We use JWST Near-Infrared Spectrograph observations from the Cosmic Evolution Early Release survey, GLASS-JWST ERS (GLASS), and JWST Advanced Deep Extragalactic Survey to measure rest-frame optical emission-line ratios of 89 galaxies at z  > 4.
Bren E. Backhaus, Nikko J. Cleri, Jonathan R. Trump, Allison Kirkpatrick, Raymond C. Simons, Ricardo O. Amorín, Pablo Arrabal Haro, Micaela B. Bagley, Madisyn Brooks, Antonello Calabrò, Kelcey Davis, Mark Dickinson, Steven L. Finkelstein, Michaela Hirschmann, Jeyhan S. Kartaltepe, Anton M. Koekemoer, Mario Llerena, Fabio Pacucci, Nor Pirzkal, Casey Papovich, Stephen M. Wilkins   +20 more
doaj   +1 more source

The JWST EXCELS Survey: Insights into the Nature of Quenching at Cosmic Noon

The Astrophysical Journal
We study 24 massive quiescent galaxies with $\mathrm{log}{{M}}_{* }/{{M}}_{\odot }\gt 10$ at 1 
Maya Skarbinski, Kate Rowlands, Katherine Alatalo, Vivienne Wild, Adam C. Carnall, Omar Almaini, David Maltby, Thomas de Lisle, Timothy Heckman, Ryan Begley, Fergus Cullen, James S. Dunlop, Guillaume Hewitt, Ho-Hin Leung, Derek McLeod, Ross McLure, Justin Atsushi Otter, Pallavi Patil, Andreea Petric, Alice E. Shapley, Struan Stevenson, Elizabeth Taylor   +21 more
doaj   +1 more source

Emission line galaxies in a narrow strip toward Perseus [PDF]

Many studies have suggested that emission line galaxies (ELG's) have spatial distributions that differ from non-emission line galaxies. The ELG's tend to avoid rich clusters and may sometimes reside within voids.
Ellman, Nancy E.
core   +1 more source