2010A&A...518L.127M

Query : 2010A&A...518L.127M

2010A&A...518L.127M - Astronomy and Astrophysics, volume 518L127-127 (2010/7-2)

GAS in Protoplanetary Systems (GASPS). I. First results.

MATHEWS G.S., DENT W.R.F., WILLIAMS J.P., HOWARD C.D., MEEUS G., RIAZ B., ROBERGE A., SANDELL G., VANDENBUSSCHE B., DUCHENE G., KAMP I., MENARD F., MONTESINOS B., PINTE C., THI W.F., WOITKE P., ALACID J.M., ANDREWS S.M., ARDILA D.R., ARESU G., AUGEREAU J.-C., BARRADO D., BRITTAIN S., CIARDI D.R., DANCHI W., EIROA C., FEDELE D., GRADY C.A., DE GREGORIO-MONSALVO I., HERAS A., HUELAMO N., KRIVOV A., LEBRETON J., LISEAU R., MARTIN-ZAIDI C., MENDIGUTIA I., MORA A., MORALES-CALDERON M., NOMURA H., PANTIN E., PASCUCCI I., PHILLIPS N., PODIO L., POELMAN D.R., RAMSAY S., RICE K., RIVIERE-MARICHALAR P., SOLANO E., TILLING I., WALKER H., WHITE G.J. and WRIGHT G.

Abstract (from CDS):

Circumstellar discs are ubiquitous around young stars, but rapidly dissipate their gas and dust on timescales of a few Myr. The Herschel Space Observatory allows for the study of the warm disc atmosphere, using far-infrared spectroscopy to measure gas content and excitation conditions, and far-IR photometry to constrain the dust distribution. We aim to detect and characterize the gas content of circumstellar discs in four targets as part of the Herschel science demonstration phase. We carried out sensitive medium resolution spectroscopy and high sensitivity photometry at λ∼60-190 µm using the Photodetector Array Camera and Spectrometer instrument on the Herschel Space Observatory. We detect [OI] 63µm emission from the young stars HD 169142, TW Hydrae, and RECX 15, but not HD 181327. No other lines, including [CII] 158 and [OI] 145, are significantly detected. All four stars are detected in photometry at 70 and 160 µm. Extensive models are presented in associated papers.

Abstract Copyright: ∼

Journal keyword(s): stars: pre-main sequence - protoplanetary disks - infrared: stars

Simbad objects: 11

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Number of rows : 11
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME THA MGr 00 00 -62.0           ~ 540 0
2 * 49 Cet PM* 01 34 37.7786780856 -15 40 34.898673000   5.667 5.607   5.54 A1V 348 0
3 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
4 Cl Mamajek 1 OpC 08 42 32.9 -78 57 47           ~ 392 0
5 V* ET Cha Or* 08 43 18.5853516024 -79 05 18.232481832     13.97     M4.0 99 0
6 V* TW Hya TT* 11 01 51.9053285064 -34 42 17.033218380   11.94 10.50 10.626 9.18 K6Ve 2144 1
7 NAME TW Hya Association As* 11 01.9 -34 42           ~ 1018 0
8 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 894 0
9 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
10 HD 169142 Ae* 18 24 29.7799891464 -29 46 49.327400568   8.42 8.16     F1VekA3mA3_lB? 535 0
11 HD 181327 PM* 19 22 58.9437222504 -54 32 16.975668624   7.50 7.04   6.49 F6V 331 0

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