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Related papers: Discovery of Resolved Debris Disk Around HD 131835

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Debris disks are considered to be gas-poor, but recent observations revealed molecular or atomic gas in several 10-40 Myr old systems. We used the APEX and IRAM 30m radiotelescopes to search for CO gas in 20 bright debris disks. In one…

Solar and Stellar Astrophysics · Physics 2015-10-14 A. Moór , Th. Henning , A. Juhász , P. Ábrahám , Z. Balog , Á. Kóspál , I. Pascucci , Gy. M. Szabó , R. Vavrek , M. Curé , T. Csengeri , C. Grady , R. Güsten , Cs. Kiss

Using VLT/SPHERE near-infrared dual-band imaging and integral field spectroscopy we discovered an edge-on debris disk around the 17\,Myr old A-type member of the Scorpius-Centaurus OB association HD 110058. The edge-on disk can be traced to…

Solar and Stellar Astrophysics · Physics 2015-10-28 Markus Kasper , Daniel Apai , Kevin Wagner , Massimo Robberto

Using the Advanced Camera for Surveys aboard the Hubble Space Telescope, we have discovered dust-scattered light from the debris disk surrounding the F2V star HD 15745. The circumstellar disk is detected between 2.0" and 7.5" radius,…

Astrophysics · Physics 2009-11-13 Paul Kalas , Gaspard Duchene , Michael P. Fitzgerald , James R. Graham

We initiated a deep-imaging survey of Scorpius-Centaurus A-F stars with predicted warm inner and cold outer belts of debris reminiscent of the architecture of emblematic systems such as HR 8799. We present resolved SPHERE images of a narrow…

We present the first scattered light image of the debris disk around HD 129590, a ~1.3 M$_\odot$ G1V member of the Scorpius Centaurus association with age ~10-16 Myr. The debris disk is imaged with the high contrast imaging instrument…

Photometry of the A0 V main-sequence star HD 106797 with AKARI and Gemini/T-ReCS is used to detect excess emission over the expected stellar photospheric emission between 10 and 20 micron, which is best attributed to hot circumstellar…

We present the first resolved image of the debris disk around the 16+/-8 Myr old star, HD 114082. The observation was made in the H-band using the SPHERE instrument. The star is at a distance of 92+/-6 pc in the Lower Centaurus Crux…

We have obtained sub-arcsec mid-IR images of a sample of debris disks within 100 pc. For our sample of nineteen A-type debris disk candidates chosen for their IR excess, we have resolved, for the first time, five sources plus the previously…

Solar and Stellar Astrophysics · Physics 2015-03-17 Margaret Moerchen , Charles Telesco , Christopher Packham

We present the first spatially resolved scattered-light images of four debris disks around members of the Scorpius-Centaurus (Sco-Cen) OB Association with high-contrast imaging and polarimetry using the Gemini Planet Imager (GPI). All four…

Recently, a new planet candidate was discovered on direct images around the young (10-17 Myr) A-type star HD95086. The strong infrared excess of the system indicates that, similarly to HR8799, {\ss} Pic, and Fomalhaut, the star harbors a…

Solar and Stellar Astrophysics · Physics 2015-06-17 A. Moór , P. Ábrahám , Á. Kóspál , Gy. M. Szabó , D. Apai , Z. Balog , T. Csengeri , C. Grady , Th. Henning , A. Juhász , Cs. Kiss , I. Pascucci , J. Szulágyi , R. Vavrek

The 16 Myr-old A0V star HD 156623 in the Scorpius--Centaurus association hosts a high-fractional-luminosity debris disk, recently resolved in scattered light for the first time by the Gemini Planet Imager (GPI) in polarized intensity. We…

We report the discovery of a nearly edge-on disk about the A0 star HD 32297 seen in light scattered by the disk grains revealed in NICMOS PSF-subtracted coronagraphic images. The disk extends to a distance of at least 400 AU (3.3") along…

Astrophysics · Physics 2009-11-13 Glenn Schneider , Murray D. Silverstone , Dean C. Hines

Two thirds of the F star members of the 12 Myr old Beta Pictoris Moving Group (BPMG) show significant excess emission in the mid-infrared, several million years after the expected dispersal of the protoplanetary disc. Theoretical models of…

Solar and Stellar Astrophysics · Physics 2015-05-19 Laura J. Churcher , Mark C. Wyatt , Rachel Smith

We report the detection of a ring of warm dust in the edge-on disk surrounding HD 32297 with the Gemini-N/MICHELLE mid-infrared imager. Our N'-band image shows elongated structure consistent with the orientation of the scattered-light disk.…

Astrophysics · Physics 2009-11-13 Michael P. Fitzgerald , Paul G. Kalas , James R. Graham

We report the discovery of a debris system associated with the $\sim 30$ Myr old G3/5V star HD 12039 using {\it Spitzer Space Telescope} observations from 3.6 -- 160$\mu$m. An observed infrared excess (L$_{\rm IR}$/L$_{\ast} =…

Coronagraphic imaging with the Near Infrared Camera and Multi Object Spectrometer on the Hubble Space Telescope reveals a large, ~400 AU (4'') radius, circumstellar disk around the Herbig Ae/Be star HD 141569. A reflected light image at 1.1…

We report the discovery of four rare debris disks with warm excesses around F-stars, significantly increasing the number of such systems known in the solar neighborhood. Three of the disks are consistent with the predictions of steady state…

Solar and Stellar Astrophysics · Physics 2009-08-05 A. Moór , D. Apai , I. Pascucci , P. Ábrahám , C. Grady , Th. Henning , A. Juhász , Cs. Kiss , Á. Kóspál

We present observations of the debris disk around gamma Doradus, an F1V star, from the Herschel Key Programme DEBRIS (Disc Emission via Bias-free Reconnaissance in the Infrared/Submillimetre). The disk is well-resolved at 70, 100 and 160…

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