中文
相关论文

相关论文: Influence of interstellar and atmospheric extincti…

200 篇论文

Traditionally, the effects of interstellar extinction on binary star light curves have been treated as a uniform reduction in the observed brightness of the system that is independent of orbital phase. However, unless the orbital plane of…

This paper addresses the issue of how best to correct astronomical data for the wavelength-dependent effects of Galactic interstellar extinction. The main general features of extinction from the IR through the UV are reviewed, along with…

天体物理学 · 物理学 2009-10-31 Edward L. Fitzpatrick

The nature of Galactic interstellar extinction is tested using reddening line parameters for several fields in conjunction with equivalent widths $W(\lambda4430)$ for the diffuse interstellar band at $4430$ \AA. The Cardelli et…

星系天体物理 · 物理学 2015-06-22 David G. Turner , Daniel J. Majaess , David D. Balam

By employing two different spectroscopic techniques we have mapped out the variable ISM dust extinction endemic to globular cluster M4. We derive an average E(B-V) reddening of 0.33 +/- 0.01 and R = 3.4 +/- 0.4, both in good agreement with…

天体物理学 · 物理学 2007-05-23 I. I. Ivans , C. Sneden , R. P. Kraft , N. B. Suntzeff , V. V. Smith , G. E. Langer , J. P. Fulbright

Recently Wo\'zniak \& Stanek (1996) proposed a new method to investigate interstellar extinction, based on two band photometry, which uses red clump stars as a means to construct the reddening curve. I apply this method to the…

天体物理学 · 物理学 2009-10-28 K. Z. Stanek

When observing astronomical objects, we must deal with extinction (i.e. the absorption and scattering of the emitted radiation by dust and gas between the source and the observer). Interstellar extinction depends on the location of the…

太阳与恒星天体物理 · 物理学 2024-08-01 E. Paunzen , M. Netopil , M. Prisegen , N. Faltova

We present a survey of the extinction properties of ten lensing galaxies, in the redshift range z = 0.04 - 1.01, using multiply lensed quasars imaged with the ESO VLT in the optical and near infrared. The multiple images act as 'standard…

天体物理学 · 物理学 2008-11-26 Árdís Elíasdóttir , Jens Hjorth , Sune Toft , Ingunn Burud , Danuta Paraficz

Aims. We aim to find more eclipsing multiple systems and obtain their parameters, thus increasing our understanding of multiple systems. Methods. The extraneous eclipses on the \textit{kepler} binary light curves indicating extraneous…

太阳与恒星天体物理 · 物理学 2018-03-28 J. Zhang , S. B. Qian , S. M. Wang , L. L. Sun , Y. Wu , L. Q. Jiang

Twenty eclipsing binaries were selected for an analysis from a huge database of observations made by the INTEGRAL/OMC camera. The photometric data were processed and analyzed, resulting in a first light-curve study of these neglected…

天体物理学 · 物理学 2008-11-12 P. Zasche

We report on the properties of eclipsing binaries from the Kepler mission with a newly developed photometric modeling code, which uses the light curve, spectral energy distribution of each binary, and stellar evolution models to infer…

太阳与恒星天体物理 · 物理学 2019-08-14 Diana Windemuth , Eric Agol , Aleezah Ali , Flavien Kiefer

Johnson BVRI photometric data for individual components of binary systems have been provided by ten Brummelaar et al. (2000). This is essential because such binaries could play a critical role in calibrating the single-star stellar…

天体物理学 · 物理学 2009-11-07 E. Lastennet , J. Fernandes , Th. Lejeune

We study mass loss from the outer Lagrange point (L2) in binary stellar mergers and their luminous transients by means of radiative hydrodynamical simulations. Previously, we showed that for binary mass ratios 0.06 < q < 0.8, synchronous L2…

太阳与恒星天体物理 · 物理学 2016-07-28 Ondrej Pejcha , Brian D. Metzger , Kengo Tomida

We present a new technique based on multi-band near ultraviolet and optical photometry to measure both the stellar intrinsic properties, ie luminosity and effective temperature, and the interstellar dust extinction along the line of sight…

天体物理学 · 物理学 2009-11-07 Martino Romaniello , Nino Panagia , Salvatore Scuderi , Robert P. Kirshner

Eclipsing binary systems play a vital role in astrophysics, as they provide a direct means of measuring fundamental stellar parameters. By combining high-precision space-based observations with ground-based multicolor photometric data,…

太阳与恒星天体物理 · 物理学 2025-06-12 N. Alan , M. Alpsoy , Y. Kilic

We suggest a simple synthesis model of an eclipsing binary system which includes one component with strong stellar wind. Numerical simulations show that the shape of the light curve (and in particularly the widths of the minima) strongly…

太阳与恒星天体物理 · 物理学 2013-03-27 E. A. Antokhina , I. I. Antokhin , A. M. Cherepashchuk

We present the physical parameters of an eclipsing binary system EPIC 211982753 derived through photometric and radial velocity data modeling. We make use of photometric data from NASA's K2 mission, ASAS-SN, and 1.3-m Devasthal Fast Optical…

太阳与恒星天体物理 · 物理学 2023-08-23 Alaxender Panchal , Yogesh C. Joshi

We present a new method for deriving UV-through-IR extinction curves, based on the use of stellar atmosphere models to provide estimates of the intrinsic (i.e., unreddened) stellar spectral energy distributions (SEDs), rather than…

天体物理学 · 物理学 2008-11-26 Edward L. Fitzpatrick , Derck Massa

Eclipsing binaries serve as a valuable source of stellar masses and radii that inform stellar evolutionary models and provide insight into additional astrophysical processes. The exquisite light curves generated by space-based missions such…

太阳与恒星天体物理 · 物理学 2016-05-25 Rachel A. Matson , Douglas R. Gies , Zhao Guo , Jerome A. Orosz

The characterisation of detached eclipsing binaries with low mass components has become important when verifying the role of convection in stellar evolutionary models, which requires model-independent measurements of stellar parameters with…

太阳与恒星天体物理 · 物理学 2022-06-29 Patricia Cruz , John F. Aguilar , Hernán E. Garrido , Marcos P. Diaz , Enrique Solano

Abstract abridged. Eclipsing binary systems provide the opportunity to measure the fundamental parameters of their component stars in a stellar-model-independent way. This makes them ideal candidates for testing and calibrating theories of…

天体物理仪器与方法 · 物理学 2024-02-12 Luc W. IJspeert , Andrew Tkachenko , Cole Johnston , Andrej Prša , Mark A. Wells , Conny Aerts
‹ 上一页 1 2 3 10 下一页 ›