2007MNRAS.375..951C


Query : 2007MNRAS.375..951C

2007MNRAS.375..951C - Mon. Not. R. Astron. Soc., 375, 951-957 (2007/March-1)

WASP-1b and WASP-2b: two new transiting exoplanets detected with SuperWASP and SOPHIE.

COLLIER CAMERON A., BOUCHY F., HEBRARD G., MAXTED P., POLLACCO D., PONT F., SKILLEN I., SMALLEY B., STREET R.A., WEST R.G., WILSON D.M., AIGRAIN S., CHRISTIAN D.J., CLARKSON W.I., ENOCH B., EVANS A., FITZSIMMONS A., FLEENOR M., GILLON M., HASWELL C.A., HEBB L., HELLIER C., HODGKIN S.T., HORNE K., IRWIN J., KANE S.R., KEENAN F.P., LOEILLET B., LISTER T.A., MAYOR M., MOUTOU C., NORTON A.J., OSBORNE J., PARLEY N., QUELOZ D., RYANS R., TRIAUD A.H.M.J., UDRY S. and WHEATLEY P.J.

Abstract (from CDS):

We have detected low-amplitude radial-velocity variations in two stars, USNO-B1.0 1219-0005465 (GSC 02265-00107 = WASP-1) and USNO-B1.0 0964-0543604 (GSC 00522-01199 = WASP-2). Both stars were identified as being likely host stars of transiting exoplanets in the 2004 SuperWASP wide-field transit survey. Using the newly commissioned radial-velocity spectrograph SOPHIE at the Observatoire de Haute-Provence, we found that both objects exhibit reflex orbital radial-velocity variations with amplitudes characteristic of planetary-mass companions and in-phase with the photometric orbits. Line-bisector studies rule out faint blended binaries as the cause of either the radial-velocity variations or the transits. We perform preliminary spectral analyses of the host stars, which together with their radial-velocity variations and fits to the transit light curves yield estimates of the planetary masses and radii. WASP-1b and WASP-2b have orbital periods of 2.52 and 2.15 d, respectively. Given mass estimates for their F7V and K1V primaries, we derive planet masses 0.80-0.98 and 0.81-0.95 times that of Jupiter, respectively. WASP-1b appears to have an inflated radius of at least 1.33 RJup, whereas WASP-2b has a radius in the range 0.65-1.26 RJup.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): methods: data analysis - techniques: photometric - techniques: radial velocities - planetary systems

Nomenclature: Table 2: WASP N (Nos 1-2). Table 4: WASP Nb (Nos 1b, 2b).

Simbad objects: 29

goto Full paper

goto View the references in ADS

Number of rows : 29
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 WASP-1b Pl 00 20 40.0746033057 +31 59 23.953709844           ~ 121 1
2 WASP-1 V* 00 20 40.0746033057 +31 59 23.953709844   12.06 11.31     F7V 107 1
3 1SWASP J005225.90+203451.2 EB* 00 52 25.9080845823 +20 34 51.319628720   11.74 11.04     ~ 5 0
4 TYC 2277-250-1 SB* 01 01 51.1079477765 +31 42 54.755485868   11.34 10.83     A2mF3 6 0
5 1SWASP J025500.31+281134.0 V* 02 55 00.31 +28 11 34.0     11.8     ~ 4 0
6 2MASS J03110320+2111413 Ro* 03 11 03.1961145994 +21 11 41.319063263           G0V 5 0
7 TYC 2389-1148-1 V* 05 12 21.3536324845 +30 06 34.894306668   11.32 10.96     ~ 4 0
8 TYC 2042-7-1 PM* 16 17 32.8990555215 +24 21 19.150080300   12.68 11.57 11.45   ~ 6 1
9 TYC 2067-157-1 SB* 16 59 49.1359572743 +26 53 46.141370115   11.31 10.83     ~ 5 1
10 TYC 3088-1051-1 SB* 17 41 18.3052912707 +38 36 56.399415335   11.83 11.39     ~ 4 1
11 1SWASP J181252.03+461851.6 V* 18 12 52.0427468401 +46 18 51.591914583   12.60 11.97     ~ 4 0
12 1SWASP J183104.01+323942.7 SB* 18 31 04.0020459862 +32 39 42.761332734   11.47 11.26     F8 6 1
13 2MASS J18430360+4626564 V* 18 43 03.6109709075 +46 26 56.466611337     11.935     K1III 5 1
14 WASP-2 V* 20 30 54.1279218812 +06 25 46.338261893   13 11.98     K1.5 120 1
15 WASP-2b Pl 20 30 54.1279218812 +06 25 46.338261893           ~ 92 1
16 ** DAE 10B * 20 30 54.179 +06 25 46.18           M0-1.5 22 1
17 TYC 1634-279-1 V* 20 41 25.2793495343 +16 39 11.871053918   12.07 11.301 10.883   K5 5 1
18 BD+06 4660 Ro* 20 50 27.3306948219 +06 40 22.940817078   10.48 9.93     F8 4 1
19 HD 353172 SB* 20 53 08.0290124003 +19 21 52.777523307   11.52 10.98     F2 5 1
20 TYC 1103-1567-1 * 21 03 18.0175538103 +08 01 17.824513247   12.79 12.08     G7 6 1
21 TYC 1650-604-1 SB* 21 16 08.4279509723 +16 32 20.409492268   11.67 11.27     F8 4 1
22 TYC 2193-597-1 * 21 41 51.0433487665 +26 01 58.552479960   11.55 10.12     ~ 3 0
23 TYC 2207-1556-1 SB* 21 58 02.1485464652 +25 30 06.229157209   11.56 10.83     ~ 3 0
24 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1589 1
25 1SWASP J222317.60+130125.8 V* 22 23 17.60 +13 01 25.8           ~ 3 0
26 TYC 2747-1081-1 SB* 22 33 20.4538664882 +37 01 38.859261459   11.39 10.71     ~ 3 0
27 TYC 1708-1146-1 SB* 22 36 51.2049138777 +22 10 00.897628287   12.34 11.66 11.48   ~ 3 0
28 NAME BD+37 4734Bb Pl 22 57 46.8443014981 +38 40 30.355384717           ~ 211 1
29 BD+29 4980 EB* 23 43 18.4157750168 +29 55 56.624092811   11.54 10.53 10.31   ~ 7 0

To bookmark this query, right click on this link: simbad:objects in 2007MNRAS.375..951C and select 'bookmark this link' or equivalent in the popup menu


2021.08.04-12:42:20

© Université de Strasbourg/CNRS

    • Contact