TOI-908: A planet at the edge of the Neptune desert transiting a G-type star

نویسندگان

چکیده

We present the discovery of an exoplanet transiting TOI-908 (TIC-350153977) using data from TESS sectors 1, 12, 13, 27, 28 and 39. is a T = 10.7 mag G-dwarf ($T_{eff}$ 5626 $\pm$ 61 K) solar-like star with mass 0.950 0.010 $M_{\odot}$ radius 1.028 0.030 $R_{\odot}$. The planet, b, 3.18 0.16 $R_{\oplus}$ planet in day orbit. Radial velocity measurements HARPS reveal b has approximately 16.1 4.1 $M_{\oplus}$ , resulting bulk planetary density 2.7+0.2-0.4 g cm-3. lies sparsely-populated region parameter space known as Neptune desert. likely began its life sub-Saturn before it experienced significant photoevaporation due to X-rays extreme ultraviolet radiation host star, continue evaporating, losing fraction residual envelope mass.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

HAT - P - 11 b : A SUPER - NEPTUNE PLANET TRANSITING A BRIGHT K STAR IN THE KEPLER FIELD

We report on the discovery of HAT-P-11b, the smallest radius transiting extrasolar planet (TEP), and the first hot Neptune discovered to date by transit searches. HAT-P-11b orbits the bright (V=9.587) and metal rich ([Fe/H] = +0.31 ± 0.05) K4 dwarf star GSC 03561-02092 with P = 4.8878162 ± 0.0000071 days and produces a transit signal with depth of 4.2mmag; the shallowest found by transit search...

متن کامل

a structural survey of the polish posters

تصویرسازی قابلیتهای فراوانی را دارا است

15 صفحه اول

A Transiting Planet of a Sun-like Star

A planet transits an 11 magnitude, G1V star in the constellation Corona Borealis. We designate the planet XO-1b, and the star, XO-1, also known as GSC 02041-01657. XO-1 lacks a trigonometric distance; we estimate it to be 200±20 pc. Of the ten stars currently known to host extrasolar transiting planets, the star XO-1 is the most similar to the Sun in its physical characteristics: its radius is ...

متن کامل

THE (△,□)-EDGE GRAPH G△,□ OF A GRAPH G

To a simple graph $G=(V,E)$, we correspond a simple graph $G_{triangle,square}$ whose vertex set is ${{x,y}: x,yin V}$ and two vertices ${x,y},{z,w}in G_{triangle,square}$ are adjacent if and only if ${x,z},{x,w},{y,z},{y,w}in Vcup E$. The graph $G_{triangle,square}$ is called the $(triangle,square)$-edge graph of the graph $G$. In this paper, our ultimate goal is to provide a link between the ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Monthly Notices of the Royal Astronomical Society

سال: 2023

ISSN: ['0035-8711', '1365-8711', '1365-2966']

DOI: https://doi.org/10.1093/mnras/stad1840