Results 101 to 110 of about 62,204 (222)

Surface Photometry of Pure Disk Galaxies [PDF]

International Astronomical Union Colloquium, 1984
AbstractSurface photometry from U.K.S.T.U. plates in U, BJ and RF is presented for the three Sculptor Group galaxies NGC 7793, NGC 247 and NGC 300. Their photometric parameters are derived and compared to those of M33. Our color maps are used to sort out the data into blue and red pixels where the blue pixels profiles are expected to be rather ...
openaire   +1 more source

Hubble Space Telescope study of resolved red giant stars in the outer halos of nearby dwarf starburst galaxies

, 2011
[abridged] Aims. We observed the outer parts of NGC 1569 and NGC 4449, two of the closest and strongest dwarf starburst galaxies in the local universe, to characterize their stellar density and populations, and obtain new insights into the structure ...
A. Aloisi, A. J. Grocholski, A. Ryś, Aloisi, Alonso-García, Angeretti, Annibali, Barker, Bekki, Bellazzini, Boyer, Burstein, Cioni, Cole, Cooper, Dolphin, F. Annibali, Gelatt, Girardi, Grebel, Greggio, Grocholski, Holtzman, Hunter, Hunter, Jurić, Kobulnicky, Marigo, McQuinn, Noël, R. P. van der Marel, Robin, Schade, Schlegel, Sirianni, Stetson, Stinson, Thuan, Tikhonov, Tikhonov, Tolstoy, Tosi, Tosi, Vansevičius, Willett, Zolotov   +45 more
core   +1 more source

Photometric Completeness Modelled with Neural Networks

The Astronomical Journal
In almost any study involving optical/near-infrared photometry, understanding the completeness of detection and recovery is an essential part of the work.
William E. Harris, Joshua S. Speagle
doaj   +1 more source

From Halos to Galaxies. X. Decoding Galaxy SEDs with Physical Priors and Accurate Star Formation History Reconstruction

The Astrophysical Journal
The spectral energy distribution (SED) of galaxies is essential for deriving fundamental properties like stellar mass and star formation history (SFH). However, conventional methods, including both parametric and nonparametric approaches, often fail to ...
Zeyu Gao, Yingjie Peng, Kai Wang, Luis C. Ho, Alvio Renzini, Anna R. Gallazzi, Filippo Mannucci, Houjun Mo, Yipeng Jing, Xiaohu Yang, Enci Wang, Dingyi Zhao, Jing Dou, Qiusheng Gu, Cheqiu Lyu, Roberto Maiolino, Bitao Wang, Yu-Chen Wang, Bingxiao Xu, Feng Yuan, Xingye Zhu   +20 more
doaj   +1 more source

The Dark Energy Survey Supernova Program: Light Curves and 5 Yr Data Release

The Astrophysical Journal
We present griz photometric light curves for the full 5 yr of the Dark Energy Survey Supernova (DES-SN) program, obtained with both forced point-spread function photometry on difference images ( DiffImg ) performed during survey operations, and scene ...
B. O. Sánchez, D. Brout, M. Vincenzi, M. Sako, K. Herner, R. Kessler, T. M. Davis, D. Scolnic, M. Acevedo, J. Lee, A. Möller, H. Qu, L. Kelsey, P. Wiseman, P. Armstrong, B. Rose, R. Camilleri, R. Chen, L. Galbany, E. Kovacs, C. Lidman, B. Popovic, M. Smith, P. Shah, M. Sullivan, M. Toy, T. M. C. Abbott, M. Aguena, S. Allam, O. Alves, J. Annis, J. Asorey, S. Avila, D. Bacon, D. Brooks, D. L. Burke, A. Carnero Rosell, D. Carollo, J. Carretero, L. N. da Costa, F. J. Castander, S. Desai, H. T. Diehl, J. Duarte, S. Everett, I. Ferrero, B. Flaugher, J. Frieman, J. García-Bellido, M. Gatti, E. Gaztanaga, G. Giannini, K. Glazebrook, S. González-Gaitán, R. A. Gruendl, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, O. Lahav, S. Lee, G. F. Lewis, H. Lin, J. L. Marshall, J. Mena-Fernández, R. Miquel, J. Myles, R. C. Nichol, R. L. C. Ogando, A. Palmese, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, A. Porredon, A. K. Romer, E. Sanchez, D. Sanchez Cid, I. Sevilla-Noarbe, E. Suchyta, M. E. C. Swanson, G. Tarle, B. E. Tucker, D. L. Tucker, V. Vikram, A. R. Walker, N. Weaverdyck, DES Collaboration   +88 more
doaj   +1 more source

The very local Hubble flow

, 2002
We present Hubble Space Telescope/WFPC2 images of eighteen galaxies situated in the vicinity of the Local Group (LG) as part of an ongoing snapshot survey of nearby galaxies.
Aparicio, Aparicio, Aparicio, Banks, Baryshev, Bellazzini, Binggeli, Capaccioli, Côté Mateo, Da Costa, Dolphin, Dolphin, Dolphin, Dolphin, Duc, Evans, Evans, Ferguson, Ferrarese, Fich, Freedman, Gallagher, Gallart, Georgiev, Giraud, Giraud, Governato, Grebel, Jerjen, Jerjen, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentseva, Karachentseva, Kochanek, Laustsen, Lee, Lee, Lee, Lee, Lynden-Bell, Maiz-Apellaniz, Makarova, Makarova, Makarova, Miller, Oosterloo, Puche, Sakai, Sakai, Salaris, Sandage, Sandage, Sandage, Sarajedini, Schlegel, Seitzer, Soffner, Stephens, Tikhonov, Tikhonov, Tolstoy, Tonry, Tully, Tully, Udalski, Waller, Zijlstra   +76 more
core   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

The Baryonic Tully–Fisher Relation. I. WISE/Spitzer Photometry

The Astronomical Journal
We present Wide-field Infrared Survey Explorer (WISE) W1 photometry of the Spitzer Photometry and Accurate Rotation Curves sample. The baseline of near-IR fluxes is established for use by stellar mass models, a key component to the baryonic Tully–Fisher ...
Francis Duey, James Schombert, Stacy McGaugh, Federico Lelli   +3 more
doaj   +1 more source

Exposing Line Emission: The Systematic Differences of Measuring Galaxy Stellar Masses with JWST NIRCam Medium versus Wide Band Photometry

The Astrophysical Journal Letters
Photometrically derived stellar masses are known to suffer from systematic uncertainties, particularly due to nebular emission contributions to the spectral energy distribution (SED).
Ghassan T. E. Sarrouh, Adam Muzzin, Kartheik G. Iyer, Lamiya Mowla, Sunna Withers, Nicholas S. Martis, Roberto Abraham, Yoshihisa Asada, Maruša Bradač, Gabriel B. Brammer, Guillaume Desprez, Vince Estrada-Carpenter, Jasleen Matharu, Gaël Noirot, Marcin Sawicki, Victoria Strait, Chris J. Willott, Johannes Zabl   +17 more
doaj   +1 more source

The Red Supergiant Progenitor of the Type II Supernova 2024abfl

The Astrophysical Journal Letters
Linkage between core-collapse supernovae and their progenitors is not fully understood and ongoing effort of searching and identifying the progenitors is needed.
Jingxiao Luo, Lifu Zhang, Bing-Qiu Chen, Qiyuan Cheng, Boyang Guo, Jiao Li, Yanjun Guo, Jianping Xiong, Xiangcun Meng, Xuefei Chen, Zhengwei Liu, Zhanwen Han   +11 more
doaj   +1 more source