中文
相关论文

相关论文: A 3D Dust Map Based on Gaia, Pan-STARRS 1 and 2MAS…

200 篇论文

[Abridged] Aims: We provide predictions for ALMA observations of planet gaps that account for the specific spatial distribution of dust that results from consistent gas+dust dynamics. Methods: In a previous work, we ran full 3D, two-fluid…

地球与行星天体物理 · 物理学 2012-08-28 J. -F. Gonzalez , C. Pinte , S. T. Maddison , F. Ménard , L. Fouchet

Spectrophotometric distances to stars observed by large spectroscopic surveys offer a crucial complement to parallax distances that remain very important also after the future Gaia data releases. Here we present a probabilistic approach to…

星系天体物理 · 物理学 2018-09-11 Johanna Coronado , Hans-Walter Rix , Wilma H. Trick

We present three dimensional (3D) dust mapping of 12 supernova remnants (SNRs) in the Galactic anti-center (Galactic longitude $l$ between 150\degr\ and 210\degr) based on a recent 3D interstellar extinction map. The dust distribution of…

星系天体物理 · 物理学 2019-07-31 Bin Yu , B. Q. Chen , B. W. Jiang , A. Zijlstra

We present detailed three-dimensional modelling of the stellar luminosity distribution for the disks of 31 relatively nearby (<= 110 Mpc) edge-on spiral galaxies. In contrast to most of the standard methods available in the literature we…

天体物理学 · 物理学 2009-10-31 M. Pohlen , R. -J. Dettmar , R. Luetticke , U. Schwarzkopf

Context. Distances to evolved massive stars in the Milky Way are not well constrained by Gaia parallaxes due to their brightness and variability. This makes it difficult to determine their fundamental stellar parameters, such as radius or…

太阳与恒星天体物理 · 物理学 2026-04-01 A. Kasikov , A. Mehner , I. Kolka , A. Aret

This is the second paper in a series that utilize IFS from MaNGA, NUV imaging from Swift/UVOT and NIR imaging from 2MASS to study dust attenuation properties on kpc scales in nearby galaxies. We apply the method developed in Paper I (Zhou…

星系天体物理 · 物理学 2025-03-19 Ruonan Guo , Cheng Li , Shuang Zhou , Niu Li , Tao Jing , Zhuo Cheng

I present a catalog of distances to 63 molecular clouds located within ~2.5 kpc of the Sun. The cloud distances are derived based on utilizing the Gaia DR3 parallaxes of the young stellar objects (YSOs). By identifying AllWISE YSO…

星系天体物理 · 物理学 2023-04-19 Miaomiao Zhang

CONTEXT. Gaia EDR3 has produced parallaxes for 1.468x10^9 sources but there are calibration issues that require corrections to the published values and uncertainties. AIMS. We want to characterize the behavior of the uncertainties of the…

天体物理仪器与方法 · 物理学 2021-04-28 J. Maíz Apellániz , M. Pantaleoni González , R. H. Barbá

We use the data from Gaia Early Data Release 3 (EDR3) to study the kinematic properties of Milky Way globular clusters. We measure the mean parallaxes and proper motions (PM) for 170 clusters, determine the PM dispersion profiles for more…

星系天体物理 · 物理学 2021-07-14 Eugene Vasiliev , Holger Baumgardt

Gaia Data Release 2 (Gaia DR2) contains results for 1693 million sources in the magnitude range 3 to 21 based on observations collected by the European Space Agency Gaia satellite during the first 22 months of its operational phase. We…

We use stellar kinematics from the latest Gaia data release (DR2) to measure the local dark matter density $\rho_{\rm DM}$ in a heliocentric cylinder of radius $R= 150 \ {\rm pc}$ and half-height $z= 200 \ {\rm pc}$. We also explore the…

星系天体物理 · 物理学 2019-04-18 Jatan Buch , John Shing Chau Leung , JiJi Fan

We present a novel technique to decompose line-of-sight (LOS) stellar polarization as a function of distance, aimed at reconstructing three dimensional (3D) plane-of-sky (POS) magnetic structures in the interstellar medium (ISM). The method…

星系天体物理 · 物理学 2026-01-14 Namita Uppal , Konstantinos Tassis , Vasiliki Pavlidou , Vincent Pelgrims , Myrto Falalaki

(Abridged) Gaia aims to make a 3-dimensional map of 1,000 million stars in our Milky Way to unravel its kinematical, dynamical, and chemical structure and evolution. Gaia's on-board detection software discriminates stars from spurious…

天体物理仪器与方法 · 物理学 2015-04-01 J. H. J. de Bruijne , M. Allen , S. Azaz , A. Krone-Martins , T. Prod'homme , D. Hestroffer

High-resolution JWST-MIRI images now allow us to resolve in great detail the multi-scale nature of the emission in nearby star-forming galaxies, from compact star-forming regions to large-scale diffuse emission, giving new insights into…

We propose a novel method of determination of the dust particle spatial distribution in dust clouds that form in three-dimensional (3D) complex plasmas under microgravity conditions. The method utilizes the data obtained during the 3D…

We investigate the structure of our Galaxy's young stellar disc by fitting the distribution functions (DFs) of a new family to five-dimensional Gaia data for a sample of $47\,000$ OB stars. Tests of the fitting procedure show that the young…

星系天体物理 · 物理学 2022-07-20 Chengdong Li , James Binney

We consider a complete sample of 101810 giants with Gaia DR2 parallaxes $\varpi$ within the red clump domain of the Hertzsprung-Russell diagram in the space cylinder with a radius of 700 pc around the Sun and a height of $|Z|=1800$ pc. We…

星系天体物理 · 物理学 2020-11-24 George A. Gontcharov , Aleksandr V. Mosenkov

The determination of the distance to dark star-forming clouds is a key parameter to derive the properties of the cloud itself, and of its stellar content. This parameter is still loosely constrained even in nearby star-forming regions. We…

太阳与恒星天体物理 · 物理学 2018-03-07 Jordan Voirin , Carlo F. Manara , Timo Prusti

We present a method to simultaneously infer the interstellar extinction parameters $A_0$ and $R_0$, stellar effective temperature $T_{\rm eff}$, and distance modulus $\mu$ in a Bayesian framework. Using multi-band photometry from SDSS and…

星系天体物理 · 物理学 2015-06-18 R. J. Hanson , C. A. L. Bailer-Jones

M dwarfs are the dominating type of stars in the solar neighbourhood. They serve as excellent tracers for the study of the distribution and properties of the nearby interstellar dust. In this work, we aim to obtain high accuracy reddening…

太阳与恒星天体物理 · 物理学 2022-06-22 Han Shen , Bingqiu Chen , Helong Guo , Haibo Yuan , Weixiang Sun , Jing Li
‹ 上一页 1 8 9 10 下一页 ›