Results 131 to 140 of about 73,764 (311)

Molecular Gas in the Powerful Radio Galaxies 3C~31 and 3C~264: Major or Minor Mergers?

, 2000
We report the detection of $^{12}$CO~($1 \to 0$) and $^{12}$CO~($2 \to 1$) emission from the central regions ($\lesssim 5$--$10 {\rm kpc}$) of the two powerful radio galaxies 3C~31 and 3C~264.
Dinh-V-Trung, , Françoise Combes, Gordon M. A., Jeremy Lim, Stephane Leon, Wiklind T.   +5 more
core   +1 more source

Very Luminous Carbon Stars in the Outer Disk of the Triangulum Spiral Galaxy [PDF]

, 2004
Stars with masses in the range from about 1.3 to 3.5 Mo pass through an evolutionary stage where they become carbon stars. In this stage, which lasts a few Myr, these stars are extremely luminous pulsating giants.
Bell, Bessell, Block, Corbelli, D. L. Block, F. Combes, Frogel, G. Worthey, I. Puerari, Ibata, K. C. Freeman, Kregel, Maraston, Marigo, Mouhcine, Pagel, Persson, R. Groess, Regan, Sandage, Searle, Searle, T. H. Jarrett, Wilson   +23 more
core   +1 more source

Infrared magnitude–redshift relations for luminous radio galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
Infrared magnitude-redshift relations for the 3CR and 6C samples of radio galaxies are presented for a wide range of plausible cosmological models, including those with non-zero cosmological constant OmegaLambda. Variations in the galaxy formation redshift, metallicity and star formation history are also considered.
Inskip, K. J., Best, P. N., Longair, M. S., MacKay, D. J. C.   +3 more
openaire   +2 more sources

HST astrometry of the closest brown dwarfs‐II. Improved parameters and constraints on a third body

Astronomische Nachrichten, Volume 345, Issue 1, January 2024.
Abstract Located at less than two pc away, Luhman 16 AB (WISE J104915.57‐531906.1) is the closest pair of brown dwarfs and the third closest “stellar” system to Earth. An exoplanet candidate in the Luhman 16 binary system was reported in 2017 based on a weak astrometric signature in the analysis of 12 HST epochs.
L. R. Bedin, J. Dietrich, A. J. Burgasser, D. Apai, M. Libralato, M. Griggio, C. Fontanive, D. Pourbaix   +7 more
wiley   +1 more source

The Arp 240 Galaxy Merger: A Detailed Look at the Molecular Kennicutt–Schmidt Star Formation Law on Subkiloparsec Scales

The Astrophysical Journal
The molecular Kennicutt–Schmidt Law has been key for understanding star formation (SF) in galaxies across all redshifts. However, recent subkiloparsec observations of nearby galaxies reveal deviations from the nearly unity slope ( N ) obtained with disk ...
A. Saravia, E. Rodas-Quito, L. Barcos-Muñoz, A. S. Evans, D. Kunneriath, G. Privon, Y. Song, I. Yoon, K. L. Emig, M. Sánchez-García, S. T. Linden, K. Green, M. Johnstone, J. Nagarajan-Swenson, G. A. Meza, E. Momjian, L. Armus, V. Charmandaris, T. Diaz-Santos, C. Eibensteiner, J. Howell, H. Inami, J. Kader, C. Ricci, E. Treister, V. U, T. Bohn, D. B. Sanders   +27 more
doaj   +1 more source

Lack of Correlations between Cold Molecular Gas and AGN Properties in Type 1 AGNs at z ≲ 0.5

The Astrophysical Journal, 2023
We present new NOrthern Extended Millimeter Array (NOEMA) observations of the CO(2–1) emission in eight of the brightest Palomar-Green quasars at z ≲ 0.5 to investigate the role of active galactic nucleus (AGN) feedback in luminous quasars detected at ...
Juan Molina, Jinyi Shangguan, Ran Wang, Luis C. Ho, Franz E. Bauer, Ezequiel Treister   +5 more
doaj   +1 more source

Integral Field Spectroscopy of the Luminous Infrared Galaxy Arp 299 (IC 694 + NGC 3690) [PDF]

, 2006
The luminous infrared galaxy Arp 299 (IC 694 + NGC 3690) is studied using optical integral field spectroscopy obtained with the INTEGRAL system, together with archival Hubble Space Telescope WFPC2 and NICMOS images. The stellar and ionized gas morphology
Macarena García-Marín, L. Colina, S. Arribas, A. Alonso-Herrero, Evencio Mediavilla Departamento de Astrofisica Molecular e Infrarroja, Instituto de Estructura de la Materia, Csic, Space Telescope Science Institute, I. D. A. D. Canarias   +8 more
semanticscholar   +1 more source

HerS-3: An Exceptional Einstein Cross Reveals a Massive Dark Matter Halo

The Astrophysical Journal
We present a study of HerS-3, a dusty star-forming galaxy at z _spec  = 3.0607, which is gravitationally amplified into an Einstein cross with a fifth image of the background galaxy seen at the center of the cross.
P. Cox, K. M. Butler, C. R. Keeton, L. Eid, E. Borsato, T. J. L. C. Bakx, R. Neri, B. M. Jones, P. Prajapati, A. J. Baker, S. Berta, A. Cooray, E. M. Corsini, L. Marchetti, A. Omont, A. Beelen, R. Gavazzi, D. Ismail, R. J. Ivison, M. Krips, M. D. Lehnert, H. Messias, D. Riechers, C. Vlahakis, A. Weiss, P. van der Werf, C. Yang   +26 more
doaj   +1 more source

Neutral Gas Outflows and Inflows in Infrared-Faint Seyfert Galaxies

, 2009
Previous studies of the Na I D interstellar absorption line doublet have shown that galactic winds occur in most galaxies with high infrared luminosities.
Cooper, Crenshaw, Croom, Croston, Das, David S. N. Rupke, Davies, de Vaucouleurs, Deo, Feldmeier, Ferrarese, Garnett, Granato, Hannah B. Krug, Henriksen, Kennicutt, Krongold, Krongold, Larson, Malkan, Martin, Martini, Martini, Martini, Mathur, Monier, Mouri, Netzer, Padovani, Pogge, Rodríguez-Ardila, Ruiz, Ruiz, Rupke, Rupke, Rupke, Sato, Scannapieco, Schlesinger, Schwartz, Schweitzer, Shapley, Smith, Spitzer, Springob, Stoll, Struve, Sylvain Veilleux, Thacker, Tremonti, Tremonti, van de Ven, Wegner, Weiner, Woo   +54 more
core   +1 more source

The host galaxies and black-hole:galaxy mass ratios of luminous quasars at z~4 [PDF]

, 2013
We present and analyse the deepest, high-quality Ks-band images ever obtained of luminous quasars at z~4, in an attempt to determine the basic properties of their host galaxies less than 1 Gyr after the first recorded appearance of black holes with Mbh >
Baskin, Bennert, Best, Bettoni, Borys, Bruzual, Buitrago, Chabrier, Cimatti, Daddi, De Breuck, Decarli, Di Matteo, Disney, Dunlop, Dunlop, Eales, Fan, Fan, Floyd, Gebhardt, Ho, Hutchings, Hutchings, Hyde, Jahnke, James S. Dunlop, Kaspi, Kormendy, Kukula, Lauer, Lilly, Longhetti, Magorrian, Marconi, McLeod, McLure, McLure, McLure, McLure, McLure, McLure, Merloni, Merritt, Miley, Mortlock, Oser, Peng, Peng, Peng, Peng, Power, Ridgway, Riechers, Riechers, Riechers, Rocca-Volmerange, Ross J. McLure, Salpeter, Schneider, Silk, Szomoru, Targett, Thomas A. Targett, Tremaine, Trujillo, Trujillo, van Breugel, van Dokkum, Vestergaard, Vestergaard, Walter, Wandel, Willott, Willott, Willott, Zirm   +76 more
core   +1 more source