2010A&A...518L.146M


C.D.S. - SIMBAD4 rel 1.7 - 2020.09.23CEST22:19:52

2010A&A...518L.146M - Astronomy and Astrophysics, volume 518, L146-146 (2010/7-2)

``TNOs are cool'': a survey of the trans-Neptunian region. I. Results from the Herschel science demonstration phase (SDP).

MUELLER T.G., LELLOUCH E., STANSBERRY J., KISS C., SANTOS-SANZ P., VILENIUS E., PROTOPAPA S., MORENO R., MUELLER M., DELSANTI A., DUFFARD R., FORNASIER S., GROUSSIN O., HARRIS A.W., HENRY F., HORNER J., LACERDA P., LIM T., MOMMERT M., ORTIZ J.L., RENGEL M., THIROUIN A., TRILLING D., BARUCCI A., CROVISIER J., DORESSOUNDIRAM A., DOTTO E., GUTIERREZ P.J., HAINAUT O.R., HARTOGH P., HESTROFFER D., KIDGER M., LARA L., SWINYARD B. and THOMAS N.

Abstract (from CDS):

The goal of the Herschel open time key programme ``TNOs are Cool!'' is to derive the physical and thermal properties for a large sample of Centaurs and trans-Neptunian objects (TNOs), including resonant, classical, detached and scattered disk objects. We present results for seven targets either observed in PACS point-source, or in mini scan-map mode. Spitzer-MIPS observations were included for three objects. The sizes of these targets range from 100km to almost 1000km, five have low geometric albedos below 10%, (145480) 2005 TB_190_ has a higher albedo above 15%. Classical thermal models driven by an intermediate beaming factor of η=1.2 or η-values adjusted to the observed colour temperature fit the multi-band observations well in most cases. More sophisticated thermophysical models give very similar diameter and albedo values for thermal inertias in the range 0-25J/m2/s-0.5/K, consistent with very low heat conductivities at temperatures far away from the Sun. The early experience with observing and model strategies will allow us to derive physical and thermal properties for our complete Herschel TNO sample of 140 targets as a benchmark for understanding the solar system debris disk, and extra-solar ones as well.

Abstract Copyright:

Journal keyword(s): Kuiper belt: general - methods: observational - techniques: photometric - instrumentation: photometers - infrared: planetary systems

Simbad objects: 0

goto Full paper

goto View the reference in ADS

Number of rows : 0

To bookmark this query, right click on this link: simbad:objects in 2010A&A...518L.146M and select 'bookmark this link' or equivalent in the popup menu


2020.09.23-22:19:52

© Université de Strasbourg/CNRS

    • Contact