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相关论文: Characterization of Dusty Debris Disks: the IRAS a…

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Debris disks around stars are considered as components of planetary systems. Constrain the dust properties of these disks can give crucial information to formation and evolution of planetary systems. As an all-sky survey, \textit{InfRared…

太阳与恒星天体物理 · 物理学 2021-05-05 Qiong Liu

Using ISO-ISOPHOT we carried out a survey of almost 150 stars to search for evidence of emission from dust orbiting young main sequence stars, both in clusters and isolated systems. Over half of the detections are new examples of dusty…

天体物理学 · 物理学 2010-03-19 C. Spangler , A. I. Sargent , M. D. Silverstone , E. E. Becklin , B. Zuckerman

We used chromospheric activity to determine the ages of 2,820 field stars.. We searched these stars for excess emission at 22 um with the Wide-Field Infrared Survey Explorer. Such excess emission is indicative of a dusty debris disk around…

太阳与恒星天体物理 · 物理学 2015-06-18 Laura Vican , Adam Schneider

Using the MIPS instrument on the Spitzer telescope, we have searched for infrared excesses around a sample of 82 stars, mostly F, G, and K main-sequence field stars, along with a small number of nearby M stars. These stars were selected for…

天体物理学 · 物理学 2008-11-26 C. Beichman , G. Bryden , K. Stapelfeldt

The presence of dusty debris around main sequence stars denotes the existence of planetary systems. Such debris disks are often identified by the presence of excess continuum emission at infrared and (sub-)millimetre wavelengths, with…

地球与行星天体物理 · 物理学 2019-01-23 Jonathan P. Marshall , S. T. Maddison , E. Thilliez , B. C. Matthews , D. J. Wilner , J. S. Greaves , W. S. Holland

We cross-correlate \hip\ main-sequence star catalog with \fis\ catalog, and identify 136 stars (at $>90$% reliability) with far-infrared detections at least in one band. After rejecting 51 stars classified as young stellar objects, Be…

地球与行星天体物理 · 物理学 2020-07-27 Qiong Liu , Tinggui Wang , Peng Jiang

We conducted a survey for infrared excess emission from 16 nearby main sequence shell stars using the Multiband Imaging Photometer for Spitzer (MIPS) on the Spitzer Space Telescope. Shell stars are early-type stars with narrow absorption…

天体物理学 · 物理学 2010-11-11 Aki Roberge , Alycia J. Weinberger

Dust in debris disks is generated by collisions among planetesimals. The existence of these planetesimals is a consequence of the planet formation process, but the relationship between debris disks and planets has not been clearly…

太阳与恒星天体物理 · 物理学 2009-07-22 Ágnes Kóspál , David R. Ardila , Attila Moór , Péter Ábrahám

Since giant planets scatter planetesimals within a few tidal radii of their orbits, the locations of existing planetesimal belts indicate regions where giant planet formation failed in bygone protostellar disks. Infrared observations of…

太阳与恒星天体物理 · 物理学 2015-05-20 Sarah E. Dodson-Robinson , C. A. Beichman , John M. Carpenter , Geoffrey Bryden

Although photometric and spectroscopic surveys with the Spitzer Space Telescope increased remarkably the number of well studied debris disks around A-type and Sun-like stars, detailed analyzes of debris disks around F-type stars remained…

太阳与恒星天体物理 · 物理学 2015-05-20 A. Moór , I. Pascucci , Á. Kóspál , P. Ábrahám , T. Csengeri , L. L. Kiss , D. Apai , C. Grady , Th. Henning , Cs. Kiss , D. Bayliss , A. Juhász , J. Kovács , T. Szalai

A significant fraction of nearby young moving group members harbor circumstellar debris dust disks. Due to their proximity and youth, these disks are attractive targets for studying the early evolution of debris dust and planetesimal belts.…

太阳与恒星天体物理 · 物理学 2016-08-03 A. Moór , Á. Kóspál , P. Ábrahám , Z. Balog , T. Csengeri , Th. Henning , A. Juhász , Cs. Kiss

We have collected a catalog of 1095 debris disks with properties and classification (resolved, planet, gas) information. From the catalog, we defined a less biased sample with 612 objects and presented the distributions of their stellar and…

地球与行星天体物理 · 物理学 2023-07-12 Peng-cheng Cao , Qiong Liu , Neng-Hui Liao , Qian-cheng Yang , Dong Huang

Observations of circumstellar disks provide a powerful tool for our understanding of planetary systems dynamics. Analogs to the Solar System asteroid belts, debris disks result from the collision of the remaining solid material of the…

We present photometric ISO 60 and 170um measurements, complemented by some IRAS data at 60um, of a sample of 84 nearby main-sequence stars of spectral class A, F, G and K in order to determine the incidence of dust disks around such…

Debris disks are the dust disks found around ~20% of nearby main sequence stars in far-IR surveys. They can be considered as descendants of protoplanetary disks or components of planetary systems, providing valuable information on…

地球与行星天体物理 · 物理学 2018-12-05 Mark C. Wyatt

(Abridged) Studies of debris discs have shown that most systems are analogous to the EKB. In this study we aim to determine how many IRAS 25um excesses towards A stars are real, and investigate where the dust lies. We observe with TIMMI2,…

地球与行星天体物理 · 物理学 2015-05-18 R. Smith , M. C. Wyatt

This paper presents a study of circumstellar debris around Sun-like stars using data from the Herschel DEBRIS Key Programme. DEBRIS is an unbiased survey comprising the nearest ~90 stars of each spectral type A-M. Analysis of the 275 F-K…

地球与行星天体物理 · 物理学 2018-03-02 B. Sibthorpe , G. M. Kennedy , M. C. Wyatt , J. -F. B. C. Matthews , G. Duchene

Debris discs are known to exist around many planet-host stars, but no debris dust has been found so far in systems with transiting planets. Using publicly available catalogues, we searched for infrared excesses in such systems. In the…

地球与行星天体物理 · 物理学 2015-05-30 Alexander V. Krivov , Martin Reidemeister , Simone Fiedler , Torsten Löhne , Ralph Neuhäuser

Debris disks are intimately linked to planetary system evolution since the rocky material surrounding the host stars is due to secondary generation from the collisions of planetesimals. With the conclusion and lack of future large scale…

太阳与恒星天体物理 · 物理学 2016-02-03 Tara Cotten , Inseok Song

Debris disks are optically thin, almost gas-free dusty disks observed around a significant fraction of main-sequence stars older than about 10 Myr. Since the circumstellar dust is short-lived, the very existence of these disks is considered…

地球与行星天体物理 · 物理学 2015-05-18 Alexander V. Krivov
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