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相关论文: Star formation history for the starburst dwarf gal…

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To identify long-period variable (LPV) stars in IC10 - the nearest starburst galaxy of the Local Group (LG) - we conducted an optical monitoring survey using the 2.5-m Isaac Newton Telescope (INT) with the wide-field camera (WFC) in the…

IC 1613 is a Local Group dwarf irregular galaxy at a distance of 750 kpc. In this work, we present an analysis of the star formation history (SFH) of a field of $\sim200$ square arcmin in the central part of the galaxy. To this aim, we use…

星系天体物理 · 物理学 2018-12-19 Seyed Azim Hashemi , Atefeh Javadi , Jacco Th. van Loon

We present resolved-star VI photometry of the Local Group dwarf irregular galaxy IC1613 reaching I~23.5, obtained with the wide-field camera at the 2.5m Isaac Newton Telescope. A fit to the stellar density distribution shows an exponential…

The star formation histories (SFHs) of galaxies provide valuable insights into galaxy evolution and stellar physics. Understanding the SFHs enables the study of chemical enrichment of galaxies, star formation triggered by interactions, and…

星系天体物理 · 物理学 2024-02-13 Yi Ren , Biwei Jiang , Yuxi Wang , Ming Yang , Zhiqiang Yan

We study the evolved stellar population of the Local Group galaxy IC10, with the aim of characterizing the individual sources observed and to derive global information on the galaxy, primarily the star formation history and the dust…

太阳与恒星天体物理 · 物理学 2018-07-04 F. Dell'Agli , M. Di Criscienzo , P. Ventura , M. Limongi , D. A. García--Hernández , E. Marini , C. Rossi

An optical monitoring survey in the nearby dwarf galaxies was carried out with the 2.5-m Isaac Newton Telescope (INT). 55 dwarf galaxies and four isolated globular clusters in the Local Group (LG) were observed with the Wide Field Camera…

We conducted an optical monitoring survey of the Sagittarius dwarf irregular galaxy (SagDIG) during the period of June 2016 -- October 2017, using the 2.5-m Isaac Newton Telescope (INT) at La Palama. Our goal was to identify Long Period…

The Local Group (LG) hosts many dwarf galaxies with diverse physical characteristics in terms of morphology, mass, star formation, and metallicity. To this end, LG can offer a unique site to tackle questions about the formation and…

A distance-limited sample of 869 objects from the Updated Nearby Galaxy Catalog is used to characterize the star formation status of the Local Volume population. We present a compiled list of 1217 star formation rate (SFR) estimates for 802…

宇宙学与河外天体物理 · 物理学 2015-06-16 Igor D. Karachentsev , Elena I. Kaisina

We present analysis of HST U,V,I, and Halpha images of the peculiar Local Group irregular galaxy IC 10. The images are used to determine the nature of the stellar products in a portion of the recent starburst in this galaxy. We identified…

天体物理学 · 物理学 2009-11-06 Deidre A. Hunter

The Local Group starburst galaxy IC10 is the closest example of a blue compact galaxy. Here, we use optical gi imaging from CFHT/MegaCam and near infra-red JHK imaging from UKIRT/WFCAM to conduct a comprehensive survey of the structure of…

星系天体物理 · 物理学 2015-10-07 Stephanie A. N. Gerbrandt , Alan W. McConnachie , Mike Irwin

We report the detection of oxygen-rich circumstellar envelopes in stars of the nearby (700 kpc) starburst galaxy IC 10. The star formation history and the chemical environment of this galaxy makes it an ideal target to observe dust…

太阳与恒星天体物理 · 物理学 2015-06-11 V. Lebouteiller , G. C. Sloan , M. A. T. Groenewegen , M. Matsuura , D. Riebel , D. G. Whelan , J. Bernard-Salas , P. Massey , E. Bayet

40 galaxies are currently known as, or suspected to be Local Group members within a radius of 1.8 Mpc. 37 of these galaxies are dwarf galaxies with M_B > -18.5 mag. I present a compilation of the star formation histories of dwarf…

天体物理学 · 物理学 2007-05-23 Eva K. Grebel

We present optical spectroscopy of H {\sc ii} regions in the Local Group galaxy IC 10 and $UBVR$ photometry of foreground stars in three fields towards this galaxy. From these data, we find that the foreground reddening due to the Milky Way…

We estimate the reddening and distance of the nearest starburst galaxy IC 10 using deep near infrared $JHK_{S}$ photometry obtained with the Multi-Object InfraRed Camera and Spectrograph (MOIRCS) on the Subaru telescope. We estimate the…

宇宙学与河外天体物理 · 物理学 2015-05-13 Minsun Kim , Eunhyeuk Kim , Narae Hwang , Myung Gyoon Lee , Myungshin Im , Hiroshi Karoji , Junichi Noumaru , and Ichi Tanaka

IC 10 is the nearest starburst irregular galaxy remarkable for its anomalously high number of WR stars. We report the results of an analysis of the emission spectra of HII-regions ionized by star clusters and WR stars based on observations…

宇宙学与河外天体物理 · 物理学 2015-05-19 O. V. Egorov , V. P. Arkhipova , T. A. Lozinskaya , A. V. Moiseev

We present an analysis of $\sim$235 ks of Chandra observations obtained over $\sim$19 years of the nearby dwarf starburst galaxy IC 10 in order to study the X-ray variability and X-ray luminosity function (XLF) of its X-ray binary (XRB)…

高能天体物理现象 · 物理学 2025-08-06 Breanna A. Binder , Rosalie Lazarus , Mina Thoresen , Silas Laycock , Sayantan Bhattacharya

We constrain the past star formation histories of a sample of 25 distant (z~0.7) luminous infrared galaxies (LIRGs) detected with the mid infrared cameras ISOCAM and MIPS onboard the ISO and Spitzer satellites. We use high resolution…

天体物理学 · 物理学 2009-11-11 D. Marcillac , D. Elbaz , S. Charlot , Y. C. Liang , F. Hammer , H. Flores , C. Cesarsky , A. Pasquali

NGC 6822 is an isolated dwarf irregular galaxy in the local group at a distance of 490 kpc. In this paper, we present the star formation history (SFH) within a field with a radius of 3 kpc, beyond the optical body of the galaxy (1.2 kpc).…

星系天体物理 · 物理学 2025-01-28 Fatemeh Khatamsaz , Mahdi Abdollahi , Hedieh Abdollahi , Atefeh Javadi , Jacco Th. van Loon

We present uniformly measured star formation histories (SFHs) of 40 Local Group dwarf galaxies based on color-magnitude diagram (CMD) analysis from archival Hubble Space Telescope imaging. We demonstrate that accurate SFHs can be recovered…

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