Home Earth and Planetary The imprint of X-ray photoevaporation of planet-forming discs on the orbital...

[1812.02173] The imprint of X-ray photoevaporation of planet-forming discs on the orbital distribution of giant planets

[ad_1]

(Submitted on 5 Dec 2018)

Abstract: High energy radiation from a planet host star can have strong influence on
the final habitability of a system through several mechanisms. In this context
we have constructed a catalogue containing the X-ray luminosities, as well as
basic stellar and planetary properties of all known stars hosting giant planets
(> 0.1 Mjup) that have been observed by the Chandra X-ray Observatory,
XMM-Newton and/or ROSAT. Specifically in this paper we present a first
application of this catalogue to search for a possible imprint of X-ray
photoevaporation of planet-forming discs on the present-day orbital
distribution of the observed giant planets. We found a suggestive void in the
semi-major axis, a, versus X-ray luminosity, Lx, plane, roughly located between
a ~ 0.05-1 au and Lx ~10^27-10^29 erg/s, which would be expected if
photoevaporation played a dominant role in the migration history of these
systems. However, due to the small observational sample size, the statistical
significance of this feature cannot be proven at this point.

Comments:12 pages; accepted for publication on December 4, 2018 in MNRAS. The catalog presented in this paper is available for download on Harvard Dataverse (this https URL)
Subjects:Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
Cite as:arXiv:1812.02173 [astro-ph.EP]
 (or
arXiv:1812.02173v1 [astro-ph.EP]
for this version)

Submission history

From: Kristina Monsch [view email]

[v1]
Wed, 5 Dec 2018 19:00:00 UTC (154 KB)

[ad_2]

Source link

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Enter Captcha Here : *

Reload Image

Must Read

Why everyone is talking about energy storage | MNN

Ever since governments started getting serious about developing renewable energy, naysayers have been arguing that it's a pipe dream — after all, the...

Give charities free ad space on your smartphone’s lock screen with Screen Donor

This app gives free ad space to deserving charities and NGOs on one of our tech-centric culture's most commonly seen screens - our...

Tropicana 100% Juice 3-Flavor Fruit Blend Variety Pack, 10 Fl Oz, Bottles, (Pack of 24)

Price: (as of - Details) Now you can enjoy the refreshing taste of Tropicana’s Fruit Medley, Pineapple Peach Mango and Strawberry Orange Juice...

Cell phones and screens are keeping your kid awake

For children and teens, using cell phones, tablets and computers at night is associated with losing sleep time and sleep quality, new research...
Support