Results 71 to 80 of about 70,641 (273)

Environment Shaping Galaxies: Spectroscopy of Cluster Galaxies

, 2002
10 pages, Latex, newpasp macro included, 5 postscript figures. Invited talk at the meeting "Matter and energy in clusters of galaxies", Taiwan 23-27 Apr 2002, proceedings in ...
openaire   +2 more sources

Are High-Σ1 Massive Blue Spiral Galaxies Rejuvenated Systems?

The Astrophysical Journal
Quiescent galaxies generally possess denser cores than star-forming galaxies with similar mass. As a measurement of the core density, the central stellar mass surface density within a radius of 1 kpc (Σ _1 ) was thus suggested to be closely related to ...
Cai-Na Hao, Xiaoyang Xia, Yong Shi, Rui Guo, Yanmei Chen, Shuai Feng, Junqiang Ge, Qiusheng Gu   +7 more
doaj   +1 more source

Integral-field near-infrared spectroscopy of two blue dwarf galaxies: NGC 5253 and He 2-10

, 2010
We present integral field spectroscopy in the near infrared (NIR) of He 2-10 and NGC 5253, two well known nearby dwarf irregular galaxies showing high star-formation rates.
Abuter, Alonso-Herrero, Alonso-Herrero, Beck, Black, Bonnet, Cabanac, Calzetti, Colina, Cresci, Cresci, Cresci, Davies, de Grijs, de Grijs, Dekel, Doyon, Eisenhauer, Elmegreen, Elmegreen, Epinat, Forster Schreiber, Fujita, G. Cresci, G. Santangelo, Genzel, Genzel, Gibson, Hanson, Henry, Hummer, Johansson, Johnson, Johnson, Kobulnicky, Kobulnicky, L. Vanzi, Law, Leitherer, M. Sauvage, Mannucci, Martin, Moorwood, Mouri, Oliva, P. van der Werf, Puxley, Rieke, Rieke, Rudnick, Santangelo, Sauvage, Schaerer, Sternberg, Swinbank, Turner, Turner, van der Werf, Vanzi, Vanzi, Vanzi, Vanzi, Vanzi   +62 more
core   +1 more source

Understanding Degradation Mechanisms in Water‐In‐Salt Electrolyte. Part 2: Impact of the Electrochemical Parameters on the Cycling Behavior of LiFePO4 versus TiS2

Batteries &Supercaps, EarlyView.
Cycling water‐in‐salt batteries involves complex degradation processes that require multiprobe analysis. Using online electrochemical mass spectrometry (OEMS), postmortem X‐ray photoemission spectroscopy (XPS) (including hard‐XPS), and scanning electron microscopy (SEM), the degradation mechanisms are examined in composite electrodes (TiS2 and LiFePO4)
Célia Doublet, Théo Faverge, Vincent Martin, Hiram Castillo Michel, Jean‐Pascal Rueff, Marian Chatenet, Lauréline Lecarme, Claire Villevieille   +7 more
wiley   +1 more source

The MaNGA Dwarf Galaxy Sample (MaNDala): Stellar Profiles and Gradients Characterization

The Astronomical Journal
We derived robust radial profiles and inner/outer gradients of various stellar population (SP) properties for a sample of 124 bright dwarf galaxies, 10 ^7.53 ≤ M _* / M _⊙ ≤ 10 ^9.06 , from the MaNDala sample, using integral field spectroscopy ...
M. Cano-Díaz, A. Rodríguez-Puebla, A. C. Robleto-Orús, V. Ávila-Reese, H. M. Hernández-Toledo, J. A. Vázquez-Mata, O. Valenzuela, J. J. González, H. J. Ibarra-Medel, J. C. Clemente-González, L. Pavón-Alvarez   +10 more
doaj   +1 more source

A Sub-Damped Ly$\alpha$ Absorber with Unusual Abundances: Evidence of Gas Recycling in a Low-Redshift Galaxy Group

, 2019
Using Hubble Space Telescope/Space Telescope Imaging Spectrograph G140M spectroscopy, we investigate an absorption-line system at $z$=0.07489 in the spectrum of the quasi-stellar object PG 1543+489 ($z_{QSO}$=0.401).
Bowen, David V., Ellison, Sara L., Frye, Brenda, Jenkins, Ed, Pettini, Max, Tripp, Todd M.   +5 more
core   +1 more source

The Host Galaxy of GRB 990712 [PDF]

, 2003
We present a comprehensive study of the z=0.43 host galaxy of GRB 990712, involving ground-based photometry, spectroscopy, and HST imaging. The broad-band UBVRIJHKs photometry is used to determine the global spectral energy distribution (SED) of the host
A. Fruchter, Andersen, Berger, Berger, Bertin, Björnsson, Bloom, Bloom, Bloom, Bolzonella, Bruzual, Calzetti, Djorgovski, Djorgovski, Duc, Eichler, Fitzpatrick, Fitzpatrick, Fruchter, Fruchter, Fruchter, Fynbo, Galama, Galama, Gorosabel, Gorosabel, Greiner, Hjorth, Hjorth, Hjorth, Holland, J. Gorosabel, J. Hjorth, Jensen, K. Sahu, Kennicutt, L. Christensen, L. Petro, Landolt, Lee, Leitherer, Lilly, Miller, Odewahn, P. Vreeswijk, Piro, Prevot, Sahu, Salpeter, Schlegel, Seaton, Sokolov, Stanek, Stanek, Vreeswijk, Vreeswijk, Waxman, Wijers, Woosley   +58 more
core   +3 more sources

Galaxy Spectroscopy without Spectra: Galaxy Properties from Photometric Images with Conditional Diffusion Models

The Astrophysical Journal
Modern spectroscopic surveys can only target a small fraction of the vast amount of photometrically cataloged sources in wide-field surveys. Here, we report the development of a generative artificial intelligence (AI) method capable of predicting optical
Lars Doorenbos, Eva Sextl, Kevin Heng, Stefano Cavuoti, Massimo Brescia, Olena Torbaniuk, Giuseppe Longo, Raphael Sznitman, Pablo Márquez-Neila   +8 more
doaj   +1 more source

A Nitrogen-rich Supernova Remnant in M31: Interaction with the Circumstellar Medium at Late Times

The Astrophysical Journal, 2023
We present the discovery of a supernova remnant in M31 which is unlike any other remnant known in that galaxy. An optical ground-based spectrum of WB92-26 taken at the MMT and sampling most of this marginally resolved object reveals strong lines of [O ii
Nelson Caldwell, John C. Raymond
doaj   +1 more source

Future prospects in observational galaxy evolution: towards increased resolution

, 2012
Future prospects in observational galaxy evolution are reviewed from a personal perspective. New insights will especially come from high-redshift integral field kinematic data and similar low-redshift observations in very large and definitive surveys. We
Glazebrook, Karl
core   +1 more source