SIMBAD references

2016ApJ...830...15J - Astrophys. J., 830, 15-15 (2016/October-2)

Hα variability in PTFO 8-8695 and the possible direct detection of emission from a 2 million year old evaporating hot Jupiter.

JOHNS-KRULL C.M., PRATO L., McLANE J.N., CIARDI D.R., VAN EYKEN J.C., CHEN W., STAUFFER J.R., BEICHMAN C.A., FRAZIER S.A., BODEN A.F., MORALES-CALDERON M. and REBULL L.M.

Abstract (from CDS):

We use high time cadence, high spectral resolution optical observations to detect excess Hα emission from the 2-3 Myr old weak-lined T Tauri star PTFO 8-8695. This excess emission appears to move in velocity as expected if it were produced by the suspected planetary companion to this young star. The excess emission is not always present, but when it is, the predicted velocity motion is often observed. We have considered the possibility that the observed excess emission is produced by stellar activity (flares), accretion from a disk, or a planetary companion; we find the planetary companion to be the most likely explanation. If this is the case, the strength of the Hα line indicates that the emission comes from an extended volume around the planet, likely fed by mass loss from the planet which is expected to be overflowing its Roche lobe.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): accretion, accretion disks - line: profiles - stars: atmospheres - stars: formation - stars: magnetic field - stars: pre-main sequence - stars: pre-main sequence

Status at CDS:  

Simbad objects: 12

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2016ApJ...830...15J and select 'bookmark this link' or equivalent in the popup menu


2020.05.28-07:07:35

© Université de Strasbourg/CNRS

    • Contact