中文
相关论文

相关论文: A New Galactic Extinction Map in High Ecliptic Lat…

200 篇论文

We have made a Galactic extinction map of the Cygnus region with 5' spatial resolution. The selected area is 80^\circ to 90^\circ in the Galactic longitude and -4^\circ to 8^\circ in the Galactic latitude. The intensity at 140 \mum is…

星系天体物理 · 物理学 2015-05-19 Tsunehito Kohyama , Hiroshi Shibai , Misato Fukagawa , Yasunori Hibi

A detailed map of the distribution of dust at high Galactic latitudes is essential for future cosmic microwave background (CMB) polarization experiments because the dust, while diffuse, remains a significant foreground in these regions. We…

星系天体物理 · 物理学 2024-10-16 Matthew O'Callaghan , Gerry Gilmore , Kaisey S. Mandel

We present new three-dimensional (3D) interstellar extinction maps in the $V$ and Gaia $G$ filters within 2 kpc of the Sun, a 3D differential extinction (dust spatial distribution density) map along the lines of sight in the same space, a…

Dust plays a critical role in the study of the interstellar medium (ISM). Extinction maps derived from optical surveys often fail to capture regions with high column density due to the limited photometric depth in optical wavelengths. To…

星系天体物理 · 物理学 2025-10-17 Miaomiao Zhang , Jouni Kainulainen , He Zhao , Yang Su , Min Fang , Yuehui Ma , Zhiwei Chen , Zhibo Jiang

Extinction maps are essential for tracing interstellar dust and enabling accurate stellar population studies in galaxies. Here, a high-resolution extinction distribution of nearby galaxy M33 is constructed by fitting multiband color indexes…

星系天体物理 · 物理学 2026-04-09 Yuxi Wang , Yi Ren , Jian Gao , Bingqiu Chen , Ying Li

An improved high-resolution and deep A$_{Ks}$ foreground dust extinction map is presented for the Galactic disk area within $295^{\circ} \lesssim l \lesssim 350^{\circ}$, $-1.0^{\circ} \lesssim b \lesssim +1.0^{\circ}$. At some longitudes…

We have created new dust temperature and column density maps of Perseus, Ophiuchus and Serpens using 60 and 100 micron data from the IRIS recalibration of IRAS data. We describe an optimized method for finding the dust temperature,…

天体物理学 · 物理学 2009-11-13 Scott L. Schnee , Naomi A. Ridge , Alyssa A. Goodman , Jason G. Li

We live in a dusty Universe, and correcting for the dust extinction and reddening affects almost all aspects of the optical astronomy. Recently Schlegel, Finkbeiner & Davis published an all-sky reddening map based on the COBE/DIRBE and…

天体物理学 · 物理学 2007-05-23 K. Z. Stanek

3D maps of the extinction density in the Galaxy can be built through the inversion of catalogues of distance-extinction pairs for individual target stars. The spatial resolution of the maps that can be achieved increases with the spatial…

星系天体物理 · 物理学 2022-08-31 J. L. Vergely , R. Lallement , N. L. J. Cox

We present a new two-dimensional (2D) map of total Galactic extinction, $A_\mathrm{V}$, across the entire dust half-layer from the Sun to extragalactic space for Galactic latitudes $|b|>13$ deg, as well as a three-dimensional (3D) map of…

We use spectra of more than 56,000 M dwarfs from the Sloan Digital Sky Survey (SDSS) to create a high-latitude extinction map of the local Galaxy. Our technique compares spectra from the stars in the SDSS Data Release 7 M dwarf sample in…

星系天体物理 · 物理学 2015-05-27 David O. Jones , Andrew A. West , Jonathan B. Foster

We use near-infrared (J-K)-colours of bright 2MASS galaxies, measured within a 7"-radius aperture, to calibrate the Schlegel et al. (1998) DIRBE/IRAS Galactic extinction map at low Galactic latitudes ($|b| < 10^{\rm o}$). Using 3460…

星系天体物理 · 物理学 2021-03-10 A. C. Schröder , W. van Driel , R. C. Kraan-Korteweg

We present a new 3D map of interstellar dust reddening, covering three quarters of the sky (declinations greater than -30 degrees) out to a distance of several kiloparsecs. The map is based on high-quality stellar photometry of 800 million…

We are studying the column density distribution of all nearby giant molecular clouds. As part of this project we generated several all sky extinction maps. They are calculated using the median near infrared colour excess technique applied…

星系天体物理 · 物理学 2009-11-13 J. Rowles , D. Froebrich

We present a three-dimensional (3D) extinction map of the southern sky. The map covers the SkyMapper Southern Survey (SMSS) area of $\sim$ 14,000 ${\rm deg^{2}}$ and has spatial resolutions between 6.9 and 27 arcmin. Based on the multi-band…

星系天体物理 · 物理学 2021-01-13 H. -L. Guo , B. -Q. Chen , H. -B. Yuan , Y. Huang , D. -Z Liu , Y. Yang , X. -Y. Li , W. -X. Sun , X. -W. Liu

We provide new, high-resolution A(Ks) extinction maps of the heavily reddened Galactic midplane based on the Rayleigh-Jeans Color Excess ("RJCE") method. RJCE determines star-by-star reddening based on a combination of near- and…

星系天体物理 · 物理学 2015-06-05 David L. Nidever , Gail Zasowski , Steven R. Majewski

Gaia data and stellar surveys open the way to the construction of detailed 3D maps of the Galactic interstellar (IS) dust based on the synthesis of star distances and extinctions. Reliable extinction measurements require very accurate…

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

We present a full sky 100 micron map that is a reprocessed composite of the COBE/DIRBE and IRAS/ISSA maps, with the zodiacal foreground and confirmed point sources removed. Before using the ISSA maps, we remove the remaining artifacts from…

天体物理学 · 物理学 2008-11-26 David J. Schlegel , Douglas P. Finkbeiner , Marc Davis

We extract J and K_s magnitudes from the 2MASS Point Source Catalog for approximately 6 million stars with 8 < K_s < 13 in order to build an A_K extinction map within 10 degrees of the Galactic centre. The extinction was determined by…

天体物理学 · 物理学 2009-11-07 C. M. Dutra , B. X. Santiago , E. L. D. Bica , B. Barbuy
‹ 上一页 1 2 3 10 下一页 ›