2012A&A...546A..27B

Query : 2012A&A...546A..27B

2012A&A...546A..27B - Astronomy and Astrophysics, volume 546A, 27-27 (2012/10-1)

A hot Uranus transiting the nearby M dwarf GJ 3470. Detected with HARPS velocimetry. Captured in transit with TRAPPIST photometry.

BONFILS X., GILLON M., UDRY S., ARMSTRONG D., BOUCHY F., DELFOSSE X., FORVEILLE T., FUMEL A., JEHIN E., LENDL M., LOVIS C., MAYOR M., McCORMAC J., NEVES V., PEPE F., PERRIER C., POLLACO D., QUELOZ D. and SANTOS N.C.

Abstract (from CDS):

We report on the discovery of GJ 3470b, a transiting hot Uranus of mass m_p=14.0±1.8M_⊕, radius R_p=4.2±0.6R_⊕ and period P=3.3371±0.0002day. Its host star is a nearby (d=25.2±2.9pc) M1.5 dwarf of mass M_*=0.54±0.07M_☉ and radius R_*=0.50±0.06R_☉. The detection was made during a radial-velocity campaign with Harps that focused on the search for short-period planets orbiting M dwarfs. Once the planet was discovered and the transit-search window narrowed to about 10% of an orbital period, a photometric search started with Trappist and quickly detected the ingress of the planet. Additional observations with Trappist, EulerCam and Nites definitely confirmed the transiting nature of GJ3470b and allowed the determination of its true mass and radius. The star's visible or infrared brightness (V^mag=12.3, K^mag=8.0), together with a large eclipse depth D=0.57±0.05%, ranks GJ3470b among the most suitable planets for follow-up characterizations.

Abstract Copyright: ∼

Journal keyword(s): techniques: radial velocities - techniques: photometric - planetary systems - stars: late-type - stars: individual: GJ 3470

Simbad objects: 16

Full paper

View the references in ADS

Number of rows : 16

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2023	#notes
1	Cl Melotte 25	OpC	04 29 47.3	+16 56 53					~	2999	0
2	CoRoT-7b	Pl	06 43 49.4690410679	-01 03 46.825797768					~	395	1
3	LP 424-4	PM*	07 59 05.8395356736	+15 23 29.236065000	13.5		11.934		M2.0V	118	1
4	NAME LP 424-4b	Pl	07 59 05.8395618539	+15 23 29.240025256					~	284	1
5	* rho01 Cnc e	Pl	08 52 35.8113282132	+28 19 50.956901366					~	552	1
6	CD-30 8858	PM*	10 58 35.0883696526	-31 08 38.200769022		11.926	11.588	9.63	M2	51	1
7	Ross 905b	Pl	11 42 11.0933874353	+26 42 23.658083337					~	779	1
8	HAT-P-26b	Pl	14 12 37.5331103311	+04 03 36.116569918					~	154	1
9	NAME G 139-21b	Pl	17 15 18.9337265994	+04 57 50.064695682					~	686	1
10	G 139-21	PM*	17 15 18.9339850845	+04 57 50.066612336			14.394		M4.5V	312	1
11	Kepler-4b	Pl	19 02 27.6981397378	+50 08 08.703759444					~	99	1
12	Kepler-10b	Pl	19 02 43.0613892904	+50 14 28.701617339					~	288	1
13	Kepler-20	Er*	19 10 47.5233433920	+42 20 19.301370684	13.278	12.630	12.478	11.64	G5V	159	1
14	Kepler-11	Er*	19 48 27.6226218768	+41 54 32.903163504	14.635	13.838	13.742		G2V	339	1
15	Kepler-11e	Pl	19 48 27.6228219845	+41 54 32.902654079					~	119	1
16	BD+47 2936b	Pl	19 50 50.2474562793	+48 04 51.097364378					~	401	1

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