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相关论文: Hubble Tarantula Treasury Project. IV. The extinct…

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VFTS 682 is located in an active star-forming region, at a projected distance of 29 pc from the young massive cluster R136 in the Tarantula Nebula of the Large Magellanic Cloud. It was previously reported as a candidate young stellar…

The Galactic bulge is one of the most information-dense regions to study resolved stellar populations, variables, and transients, such as microlensing events. Studies toward the Galactic bulge are complicated by the large and variable…

Precise interstellar dust extinction laws are important to infer the intrinsic properties of reddened objects and correctly interpret observations. In this work, we attempt to measure the optical--infrared extinction laws of the Large and…

星系天体物理 · 物理学 2023-04-05 Shu Wang , Xiaodian Chen

The Tarantula region in the Large Magellanic Cloud contains the richest population of spatially resolved massive O-type stars known so far. This unmatched sample offers an opportunity to test models describing their main-sequence evolution…

In the past few years, the extinction law has been measured in the infrared wavelengths for various molecular clouds and different laws have been obtained. In this paper we seek variations of the extinction law within the Trifid nebula…

星系天体物理 · 物理学 2015-05-20 L. Cambrésy , J. Rho , D. J. Marshall , W. T. Reach

We propose a new method to investigate the coefficient of the selective extinction, based on two band photometry. This method uses red clump stars as a means to construct the reddening curve. We apply this method to the OGLE color-magnitude…

天体物理学 · 物理学 2009-10-28 P. R. Wozniak , K. Z. Stanek

This paper examines the relationship between spectra of stars of same spectral type with extremely low reddenings. According to the standard theory, the relationship between the spectrum of stars with same spectral type and small, but…

天体物理学 · 物理学 2009-11-06 Frederic Zagury

In this paper we present a detailed study of the intra-cluster reddening material in the young open clusters located around $l \sim 130^o$ using colour-excess diagrams and two-colour diagrams. The study supports the universality of the…

天体物理学 · 物理学 2009-11-07 A K Pandey , K Upadhyay , Y Nakada , K Ogura

We have investigated the interstellar reddening law of young open clusters within 3kpc from the Sun using optical, near-IR 2MASS, and Spitzer IRAC data. The total-to-selective extinction ratio Rv of 162 young open clusters (log t{age} <=…

星系天体物理 · 物理学 2014-02-10 Hwankyung Sung , M. S. Bessell

We report a search for the presence of dust in the intra-cluster medium based on the study of statistical reddening of background galaxies. Armed with the Red Sequence Cluster survey data, from which we extracted (i) a catalog of 458…

We present an extinction map of the Large Magellanic Cloud (LMC), using 204,502 stars from the Two Micron All Sky Survey point source catalog. We first use the NICE method to determine the reddening distribution, \ehk and \ejh, which we…

天体物理学 · 物理学 2011-02-11 Nia Imara , Leo Blitz

The interstellar extinction law is important for interpreting observations and inferring the properties of interstellar dust grains. Based on the 993 prism/CLEAR spectra from the James Webb Space Telescope (JWST), we investigate…

星系天体物理 · 物理学 2024-02-28 Shu Wang , Xiaodian Chen

We investigate the shape of the extinction law in two 1-degree square fields of the Perseus Molecular Cloud complex. We combine deep red-optical (r, i, and z-band) observations obtained using Megacam on the MMT with UKIDSS near-infrared (J,…

Magnitude-limited samples of spiral galaxies drawn from the Ursa Major and Pisces clusters are used to determine their extinction properties as a function of inclination. Imaging photometry is available for 87 spirals in B,R,I and K' bands.…

天体物理学 · 物理学 2009-10-30 R. Brent Tully , M. J. Pierce , J. S. Huang , W. Saunders , M. A. W. Verheijen , P. L. Witchalls

Fundamental properties of the extinction curve, like the slope in the rest-frame ultraviolet (UV) and the presence/absence of a broad absorption excess centred at 2175 A (the UV bump), are investigated for a sample of 108 massive,…

天体物理学 · 物理学 2009-11-13 S. Noll , D. Pierini , M. Pannella , S. Savaglio

We present values for angular diameter, flux and extinction for 70 Galactic planetary nebulae observed using narrow band filters. Angular diameters are derived using constant emissivity shell and photoionization line emission models. The…

天体物理学 · 物理学 2009-11-10 P. M. E. Ruffle , A. A. Zijlstra , J. R. Walsh , M. D. Gray , K. Gesicki , D. Minniti , F. Comeron , .

Context: The commonly used extinction laws of Cardelli et al. (1989) have limitations that, among other issues, hamper the determination of the effective temperatures of O and early B stars from optical+NIR photometry. Aims: We aim to…

Extinction in ultraviolet is much more significant than in optical or infrared, which can be very informative to precisely measure the extinction and understand the dust properties in the low extinction areas. The high Galactic latitude sky…

星系天体物理 · 物理学 2021-06-23 Mingxu Sun , Biwei Jiang , Haibo Yuan , Jun Li

We provide an overview of Science Verification MUSE observations of NGC 2070, the central region of the Tarantula Nebula in the Large Magellanic Cloud. Integral-field spectroscopy of the central 2' x 2' region provides the first complete…

星系天体物理 · 物理学 2018-01-04 Paul A Crowther , Norberto Castro , Chris Evans , Jorick Vink , Jorge Melnick , Fernando Selman

We present an optical analysis of 55 members of R136, the central cluster in the Tarantula Nebula of the Large Magellanic Cloud. Our sample was observed with STIS aboard the Hubble Space Telescope, is complete down to about 40\,$M_{\odot}$,…