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相关论文: Low Surface Brightness Galaxies selected by differ…

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We present the results of a study of the globular cluster systems of 6 massive spiral galaxies, originally cataloged as low surface brightness galaxies but here shown to span a wide range of central surface brightness values, including two…

天体物理学 · 物理学 2009-11-13 Daniela Villegas , Markus Kissler-Patig , Andrés Jordán , Paul Goudfrooij , Martin Zwaan

To study the disc central surface brightness ($\mu_0$) distribution in optical and near-infrared bands, we select 708 disc-dominated galaxies within a fixed distance of 57 Mpc from SDSS DR7 and UKIDSS DR10. Then we fit $\mu_0$ distribution…

星系天体物理 · 物理学 2019-01-30 L. Zhou , W. Du , H. Wu , Y. C. Liang , M. He , P. S. Zhao , L. C. Deng , W. B. Shi , Y. H. Wang

(Abridged) A robust analysis of galaxy structural parameters, based on the modeling of bulge and disk brightnesses in the BVRH bandpasses, is presented for 121 face-on and moderately inclined late-type spirals. Each surface brightness (SB)…

天体物理学 · 物理学 2010-04-06 Lauren A. MacArthur , Stephane Courteau , Jon A. Holtzman

We aim to define a sample of intermediate-z disk galaxies harbouring central bulges, and a complementary sample of disk galaxies without measurable bulges. We intend to provide colour profiles for both samples, as well as measurements of…

Thanks to new advances in astronomical imaging, we can now routinely explore disk galaxy profiles about two magnitudes deeper than the data available 20 years ago. In this regard, it is an opportune time to reevaluate the past…

星系天体物理 · 物理学 2026-01-14 Samane Raji , Ignacio Trujillo , Fernando Buitrago , Giulia Golini , Ignacio Ruiz Cejudo

A search has been made for 21 cm HI line emission in a total of 350 unique galaxies from two samples whose optical properties indicate they may be massive The first consists of 241 low surface brightness (LSB) galaxies of morphological type…

星系天体物理 · 物理学 2023-07-26 K. O'Neil , Stephan E. Schneider , W. van Driel , G. Liu , T. Joseph , A. C. Schwortz , Z. Butcher

The oxygen abundances in the \HII regions of a sample of low surface brightness (LSB) disk galaxies are presented. In general, LSB galaxies are found to be metal poor ($Z < {1 \over 3} Z\solar$). Indeed, some LSB galaxies rival the lowest…

天体物理学 · 物理学 2009-10-22 Stacy McGaugh

Understanding how bulges grow in galaxies is critical step towards unveiling the link between galaxy morphology and star-formation. To do so, it is necessary to decompose large sample of galaxies at different epochs into their main…

An update of the set of low surface brightness galaxies is presented which can be used to set constraints on the otherwise ambiguous decompositions of their rotation curves into contributions due to the various components of the galaxies.…

天体物理学 · 物理学 2009-11-07 B. Fuchs

Luminous compact blue galaxies (LCBGs) are a diverse class of galaxies characterized by high luminosities, blue colors, and high surface brightnesses. Residing at the high luminosity, high mass end of the blue sequence, LCBGs sit at the…

宇宙学与河外天体物理 · 物理学 2014-11-20 D. J. Pisano , C. Garland , K. Rabidoux , S. Wolfe , R. Guzman , J. Perez-Gallego , F. J. Castander

We study massive disk galaxies (total stellar mass$>=10^{11}$ $\mathrm{M_{\odot}}$) from IllustrisTNG50 simulation, and perform 2-D structural decomposition of the galaxies using their idealised, synthetic SDSS images for z=0. We find an…

星系天体物理 · 物理学 2026-02-11 Suchira Sarkar , Kanak Saha

While bright, blue, compact galaxies are common at $\rm z \sim 1$, they are relatively rare in the local universe, and their evolutionary paths are uncertain. We have obtained resolved H I observations of nine $\rm z \sim 0$ luminous…

星系天体物理 · 物理学 2018-01-08 Katie Rabidoux , D. J. Pisano , C. A. Garland , Rafael Guzman , Francisco J. Castander , Spencer Wolfe

Photometric deprojection is used to determine the stellardisk and bulge parameters for several edgeon galaxies from the FGC catalog. The assumption that the galaxies of our sample belonging to the fourth (i.e., lowest) surfacebrightness…

天体物理学 · 物理学 2009-10-31 D. Bizyaev

(Abridged) A variety of formation scenarios was proposed to explain the diversity of properties observed in bulges. Studying their intrinsic shape can help in constraining the dominant mechanism at the epochs of their assembly. The…

天体物理学 · 物理学 2015-05-13 J. Mendez-Abreu , J. A. L. Aguerri , E. M. Corsini , E. Simonneau

Classical low surface brightness (LSB) galaxies pose an important challenge to galaxy evolution models. While they are found to host large reservoirs of atomic hydrogen, they display low stellar and star-formation surface densities. Global…

星系天体物理 · 物理学 2025-09-25 Hannah S. Christie , Pauline Barmby , Jason E. Young

We perform several high resolution N-Body/SPH simulations of low surface brightness galaxies (LSBs) embedded in cold dark matter halos to study how likely is bar formation in such systems. The behavior of various collisionless galaxy models…

天体物理学 · 物理学 2009-11-07 Lucio Mayer , James Wadsley

Using the IRAM 30m telescope we have obtained seven new, deep CO J(1-0) and J(2-1) observations of low surface brightness (LSB) galaxies. Five of the galaxies have no CO detected to extremely low limits (0.1-0.4 K km/s at J(1-0)), while two…

天体物理学 · 物理学 2009-11-07 K. O'Neil , E. Schinnerer , P. Hofner

(Abridged) We determine the quantitative morphology and star formation properties of galaxies in six nearby X-ray detected, poor groups using multi-object spectroscopy and wide-field R imaging. We measure structural parameters for each…

天体物理学 · 物理学 2009-10-31 Kim-Vy H. Tran , Luc Simard , Ann I. Zabludoff , John S. Mulchaey

How does the low surface brightness galaxies (LSBGs) form stars and assemble the stellar mass is one of the most important questions to understand the LSBG population. We select a sample of 381 HI bright LSBGs with both Far Ultraviolet…

(Abridged) Luminous Compact Galaxies (LCGs) (M_B < -20, R_{1/2} < 4.5kpc and EW_{0}(OII) >15\AA) constitute one of the most rapidly evolving galaxy populations over the last ~8 Gyr history of the universe. Due to their inherently compact…

天体物理学 · 物理学 2009-11-13 A. Rawat , A. K. Kembhavi , F. Hammer , H. Flores , S. Barway