2022A&A...664A.163N

Query : 2022A&A...664A.163N

2022A&A...664A.163N - Astronomy and Astrophysics, volume 664A, 163-163 (2022/8-1)

The GAPS Programme at TNG. XXXVII. A precise density measurement of the young ultra-short period planet TOI-1807 b,.

NARDIELLO D., MALAVOLTA L., DESIDERA S., BARATELLA M., D'ORAZI V., MESSINA S., BIAZZO K., BENATTI S., DAMASSO M., RAJPAUL V.M., BONOMO A.S., CAPUZZO DOLCETTA R., MALLONN M., CALE B., PLAVCHAN P., EL MUFTI M., BIGNAMINI A., BORSA F., CARLEO I., CLAUDI R., COVINO E., LANZA A.F., MALDONADO J., MANCINI L., MICELA G., MOLINARI E., PINAMONTI M., PIOTTO G., PORETTI E., SCANDARIATO G., SOZZETTI A., ANDREUZZI G., BOSCHIN W., COSENTINO R., FIORENZANO A.F.M., HARUTYUNYAN A., KNAPIC C., PEDANI M., AFFER L., MAGGIO A. and RAINER M.

Abstract (from CDS):


Context. Great strides have been made in recent years in the understanding of the mechanisms involved in the formation and evolution of planetary systems. Despite this, many observational findings have not yet been corroborated by astrophysical explanations. A fine contribution to the study of planetary formation processes comes from the study of young, low-mass planets, with short orbital periods (<100 days). In the last three years, the NASA/TESS satellite has identified many planets of this kind and their characterization is clearly necessary in order to understand how they formed and evolved.
Aims. Within the framework of the Global Architecture of Planetary System (GAPS) project, we performed a validation and characterization (radius and mass) of the ultra-short period planet TOI-1807 b, which orbits its young host star BD+39 2643 (∼300 Myr) in only 13 h. This is the youngest ultra-short period planet discovered so far.
Methods. Thanks to a joint modeling of the stellar activity and planetary signals in the TESS light curve and in new HARPS-N radial-velocity measurements, combined with accurate estimation of stellar parameters, we validated the planetary nature of TOI-1807 b and measured its orbital and physical parameters.
Results. By using astrometric, photometric, and spectroscopic observations, we found that BD+39 2643 is a young, active K dwarf star and a member of a 300±80 Myr old moving group. Furthermore, it rotates in Prot=8.8±0.1 days. This star hosts an ultra-short period planet, exhibiting an orbital period of only Pb=0.54937±0.00001 days. Thanks to the exquisite photometric and spectroscopic series, along with the accurate information on its stellar activity, we measured both the radius and the mass of TOI-1807 b with high precision, obtaining PP,b=1.37±0.09R⊕ and MP,b=2.57±0.50M⊕. These planet parameters correspond to a rocky planet with an Earth-like density (ρb=1.0±0.3ρ⊕) and no extended H/He envelope. From the analysis of the age-RP distribution for planets with well measured ages, we inferred that TOI-1807 b may have already lost a large part of its atmosphere over the course of its 300 Myr lifetime.

Abstract Copyright: © D. Nardiello et al. 2022

Journal keyword(s): planets and satellites: fundamental parameters - stars: fundamental parameters - stars: individual: BD+39 2643 - techniques: photometric - techniques: spectroscopic - techniques: radial velocities

VizieR on-line data: <Available at CDS (J/A+A/664/A163): tableb1.dat tablee1.dat tablee2.dat tablee3.dat lcs22.dat lcs23.dat>

Status at CDS : Examining the need for a new acronym. // All or part of tables of objects will be ingested in SIMBAD with priority 1.

Simbad objects: 148

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Number of rows : 148
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME THA As* 00 00 -62.0           ~ 468 0
2 HD 123A PM* 00 06 15.8138660328 +58 26 12.107266800   7.12 6.42     G3V 36 0
3 HD 123 ** 00 06 15.81412 +58 26 12.2207       7.01   G3V+G8V 189 0
4 UCAC4 180-001659 PM* 01 49 05.9002248288 -54 11 57.066586368   14.607 13.143 12.821 10.846 M1.0Ve 9 0
5 ATO J041.4695+05.4898 PM* 02 45 52.6132269336 +05 29 24.221376816   15.11 13.60 13.23   ~ 4 0
6 HD 17250B PM* 02 46 14.4899348036 +05 35 32.702150047           ~ 1 0
7 HD 17250 SB* 02 46 14.6093183904 +05 35 33.328803912   8.40 7.88     F8 51 0
8 HD 18414 PM* 02 56 42.1076606328 -30 51 36.799874460   9.62 8.96     G3V 7 0
9 Wolf 140 PM* 03 18 07.0127338056 +42 40 09.134790672   14.6   13.065   M3.5V 22 0
10 HD 20776 PM* 03 19 38.9258356080 -34 01 25.363632324   10.11 9.26     K0V 27 0
11 Cl Melotte 22 OpC 03 46 24.2 +24 06 50           ~ 3433 0
12 2MASS J03550477-1032415 LM* 03 55 04.7749240608 -10 32 41.589836448           M8.5 10 0
13 NAME V1298 Tau c Pl 04 05 19.5909996648 +20 09 25.563233736           ~ 35 0
14 NAME V1298 Tau d Pl 04 05 19.5909996648 +20 09 25.563233736           ~ 22 0
15 EPIC 210818897 b Pl 04 05 19.5909996648 +20 09 25.563233736           ~ 43 0
16 NAME V1298 Tau e Pl 04 05 19.5909996648 +20 09 25.563233736           ~ 19 0
17 HD 26413 PM* 04 08 33.8779420296 -45 51 53.273869884 6.97 6.97 6.59     F3V 58 0
18 CD-38 1467b Pl 04 11 51.9468918168 -37 56 23.219155140           ~ 10 0
19 CD-38 1467d Pl 04 11 51.9468918168 -37 56 23.219155140           ~ 10 0
20 CD-38 1467c Pl 04 11 51.9468918168 -37 56 23.219155140           ~ 9 0
21 1RXS J041255.6-141841 PM* 04 12 55.7522973048 -14 18 59.168885724   14.22 12.76 12.425 10.87 M1e 11 0
22 K2-25b Pl 04 13 05.6131374072 +15 14 52.018080576           ~ 79 0
23 NAME Cas-Tau As* 04 16 +27.6           ~ 79 1
24 HD 34652 PM* 04 21 16.6128077736 -87 48 46.606672476   7.96 7.50     F5V 28 0
25 HD 27857 PM* 04 26 26.1931714056 +52 30 17.184792312   8.69 8.05     G5 32 0
26 K2-136b Pl 04 29 38.9939167752 +22 52 57.793533924           ~ 19 0
27 K2-136d Pl 04 29 38.9939167752 +22 52 57.793533924           ~ 17 0
28 K2-136c Pl 04 29 38.9939167752 +22 52 57.793533924           ~ 24 0
29 Cl Melotte 25 OpC 04 29 47.3 +16 56 53           ~ 3074 0
30 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4414 0
31 HD 283869b Pl? 04 47 41.8002545136 +26 09 00.821376936           ~ 9 0
32 K2-284b Pl 05 16 33.7635876744 +20 15 18.365704668           ~ 10 0
33 V* AB Dor TT* 05 28 44.8712165880 -65 26 55.199147208 8.259 7.856 6.999 6.496 5.993 K0V 1021 0
34 ATO J088.5151-27.3236 PM* 05 54 03.5777994768 -27 19 25.212723312   15.09 13.57 13.22 11.11 ~ 6 0
35 NAME Columba Association As* 06 04 19.4 -22 20 40           ~ 280 0
36 UCAC2 9643914 PM* 07 00 03.2608836240 -51 21 15.443559792   15.14 13.62 13.28 11.21 ~ 4 0
37 GSC 08558-01964 ** 07 10 59.922936 -56 32 59.68608   14.456 13.005 12.708   M1.5 11 0
38 * alf Gem ** 07 34 35.87319 +31 53 17.8160 1.64 1.62 1.58 1.51 1.52 A1V+A2Vm 260 0
39 HD 63433b Pl 07 49 55.0606576176 +27 21 47.457467316           ~ 41 0
40 HD 63433c Pl 07 49 55.0606576176 +27 21 47.457467316           ~ 39 0
41 HD 72687 * 08 33 15.3792365064 -29 57 23.719088448   8.92 8.26     G5V 57 0
42 K2-95b Pl 08 37 27.0563032536 +18 58 36.021202824           ~ 37 0
43 K2-100b Pl 08 38 24.3002838928 +20 06 21.828057218           ~ 67 0
44 K2-104b Pl 08 38 32.8359046503 +19 46 25.591543965           ~ 24 0
45 NGC 2632 OpC 08 40 13.0 +19 37 16           ~ 1564 0
46 K2-102b Pl 08 40 13.4534275080 +19 46 43.709186244           ~ 15 0
47 IC 2391 OpC 08 41 10.1 -52 59 28           ~ 822 0
48 K2-101b Pl 08 41 22.5783027954 +18 56 01.947224876           ~ 22 0
49 K2-103b Pl 08 41 38.4893118114 +17 38 24.084971669           ~ 20 0
50 K2-264b Pl 08 45 26.0457995394 +19 41 54.446989270           ~ 14 0
51 K2-264c Pl 08 45 26.0457995394 +19 41 54.446989270           ~ 16 0
52 HD 76332 PM* 08 56 22.9449733560 +28 40 04.399667796   9.20 8.58     G2V 33 0
53 TYC 3430-1344-1 PM* 09 04 59.6584618632 +50 25 03.843633972   11.04 10.14     ~ 2 0
54 TYC 6621-759-1 PM* 10 04 25.8213615000 -26 12 31.045813056   12.54 11.10     ~ 4 0
55 TYC 4144-944-1 PM* 10 28 02.1672358632 +60 05 46.562549640   11.69 10.71     ~ 1 0
56 * 40 LMi PM* 10 43 01.8824111712 +26 19 32.028671352   5.682 5.506     A4Vn 70 0
57 PM J10431+2218 PM* 10 43 07.8442567776 +22 18 07.340247288     12.928 12.627   ~ 3 0
58 LP 373-35 LM* 10 57 03.7872611328 +22 17 20.189488884   18.0   16.0   M6V 17 0
59 NGC 3532 OpC 11 05 40.1 -58 42 25           ~ 350 0
60 2MASS J11155546+4049569 PM* 11 15 55.4703290832 +40 49 56.958336876     14.139     ~ 3 0
61 HD 99419 PM* 11 26 27.1871833272 +20 31 05.197547352 8.590 8.510 7.940     G5 26 0
62 HD 103928B PM* 11 58 06.7193099040 +32 16 22.128350628           ~ 1 0
63 HD 103928 PM* 11 58 07.1737869528 +32 16 26.067763128   6.735 6.422     A9V 84 0
64 NAME Lower Centaurus Crux As* 12 19 -57.1           ~ 477 1
65 * 17 Vir B PM* 12 22 31.5028781400 +05 18 38.867625432   10.38   8.4   K5V: 20 0
66 * 17 Vir PM* 12 22 32.0379656376 +05 18 19.607871132   7.01 6.47 6.1   F8V 123 0
67 TYC 4394-114-1 PM* 12 23 19.3386692016 +67 54 07.961813892   12.56 11.55     ~ 3 0
68 PM J12236-1459 PM* 12 23 39.9538065528 -14 59 20.094468180     13.306 12.920   ~ 4 0
69 TOI-1227b Pl 12 27 04.3053248184 -72 27 06.492769776           ~ 16 0
70 NAME Ursa Major Moving Group MGr 12 32 +57.0           ~ 439 2
71 NAME MELANGE-1 As* 12 50 22.0 -88 07 15           ~ 11 0
72 HD 110082b Pl 12 50 22.0189634880 -88 07 15.721088448           ~ 7 0
73 V* LX Com BY* 12 51 38.4093800088 +25 30 31.790649348   9.97 9.10 8.4   K0IV 48 0
74 BD+26 2401 SB* 12 52 02.1704046696 +25 27 23.847766524   11.12 9.92 9.561   K5IV-V 38 0
75 L 68-145 PM* 12 54 29.0995200840 -74 30 08.412389604     11.913 11.506   ~ 12 0
76 BD+36 2322B PM* 12 57 39.3125173002 +35 13 19.148808620   14.80 13.16 12.939   M4.5Ve 97 1
77 BD+36 2322 BY* 12 57 40.2569835641 +35 13 29.629213095   12.02 10.52 10.137   M0V+M4/5V 230 1
78 HD 112733 PM* 12 58 31.9698234816 +38 16 43.556629692   9.41 8.63     G5V 44 0
79 BD+39 2587 PM* 12 58 35.0000764728 +38 16 48.453734316   10.18 9.31     G6V 37 0
80 HD 113414 PM* 13 03 39.0098940936 -16 20 11.670539388   8.31 7.74     F7/8V 29 0
81 BD+39 2643b Pl 13 25 07.9957316160 +38 55 20.944920864           ~ 24 0
82 BD+39 2643 PM* 13 25 07.9957316160 +38 55 20.944920864   11.131 10.257 9.736   K3V 33 0
83 HD 117378 PM* 13 29 03.2828436984 +42 14 17.744566200   8.213 7.636     F9.5V+ 37 0
84 StKM 1-1078 PM* 13 35 26.1445234992 +43 45 56.792621088   12.49 10.96     K4 2 0
85 HD 120411b Pl 13 50 06.2797027704 -40 50 08.881076364           ~ 24 0
86 StKM 1-1119 ** 14 04 09.205080 +20 44 31.40304   13.15 11.61 11.16   M1.0Ve 14 0
87 BD+21 2602 PM* 14 04 09.9961274112 +20 45 32.849221428   11.1 10.18     K4 20 0
88 RX J1419.0+6451 PM* 14 19 03.2957561136 +64 51 46.327045824           M3 12 0
89 BD+40 2790d Pl 14 29 34.2426073536 +39 47 25.543283496           ~ 8 0
90 BD+40 2790c Pl 14 29 34.2426073536 +39 47 25.543283496           ~ 11 0
91 BD+40 2790b Pl 14 29 34.2426073536 +39 47 25.543283496           ~ 24 0
92 BD+40 2790 PM* 14 29 34.2426073536 +39 47 25.543283496   10.03 9.14     K0 21 0
93 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 774 0
94 HD 127821 PM* 14 30 46.0701500520 +63 11 08.830919544       5.8   F4IV 81 0
95 HD 129425 PM* 14 40 10.5633454296 +57 42 47.448529632   8.37 7.86     F8 31 0
96 HD 130460 PM* 14 45 16.6194557928 +65 19 47.928801612   7.70 7.22     F5 29 0
97 BD+18 2930 PM* 14 46 57.1317447384 +18 18 00.949918068   10.30 9.40     K0 12 0
98 NAME Ursa Major Cluster ClG 15 08.8 +67 07           ~ 409 0
99 StKM 1-1231 Ro* 15 18 44.7366177720 +35 56 55.444638912   12.68 11.634 11.145   K4 8 0
100 StKM 1-1232 PM* 15 19 15.1474528416 +24 19 37.464204720   12.61 10.92     K5 3 0
101 HD 137897 PM* 15 28 32.9454630312 +03 06 37.588088052   9.93 9.15     G8V 4 0
102 PM J15437+4450 PM* 15 43 42.7136108832 +44 50 51.876324096     13.358 12.910   M2.5 6 0
103 TYC 3059-299-1 PM* 15 46 23.1621765096 +44 03 14.768454960   13.02 11.86     K7 15 0
104 PM J15516+1840 PM* 15 51 39.1352134560 +18 40 23.352438792     13.046 12.528   ~ 5 0
105 SCR J1600-0230 PM* 16 00 12.0288670584 -02 30 59.369202144   14.07 12.56 12.45 10.40 M2e 10 0
106 LSPM J1604+2331 PM* 16 04 13.2213243504 +23 31 38.570711448   16.5   14.809   M5.0V 21 0
107 HD 144489 PM* 16 05 35.0354926728 +15 15 26.920604268   9.33 8.66     K0 16 0
108 K2-33b Pl 16 10 14.7377409264 -19 19 09.407629452           ~ 66 0
109 NAME Upper Sco Association As* 16 12 -23.4           ~ 1369 1
110 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1330 1
111 HD 148319 PM* 16 27 30.8502729120 -10 08 34.373209524   9.27 8.62     G3/5V 35 0
112 2MASS J16371518+3331426 PM* 16 37 15.1754399184 +33 31 42.772046448     14.081     ~ 3 0
113 BD-05 4394 PM* 17 02 49.5862505280 -06 04 06.249515592 13.492 12.296 10.817 9.877 8.892 M0 42 0
114 * mu. Dra ** 17 05 20.12403 +54 28 12.0994           F6V+F6V 105 0
115 TYC 5668-239-1 PM* 17 44 28.5086239656 -13 04 27.958675260   11.52 10.42     ~ 2 0
116 HD 162199 PM* 17 49 23.1495938544 +10 20 19.826888748   9.26 8.37     K0 5 0
117 2MASS J18153959+1152077 IR 18 15 39.59472 +11 52 07.7484           ~ 1 0
118 HD 168746 PM* 18 21 49.7826927816 -11 55 21.652464900   8.66 7.95     G5V 194 2
119 PM J18451+0620 PM* 18 45 10.2699409392 +06 20 15.939616848   12.28 10.763 10.381 8.800 M1.0Ve 27 0
120 NAME del Lyr Cluster OpC 18 54 16.3 +36 53 56   4.58 3.8     ~ 79 0
121 Kepler-1627b Pl 18 56 13.5978347112 +41 34 36.240123684           ~ 12 0
122 Kepler-1975b Pl 19 06 59.6424598464 +45 09 31.388510592           ~ 5 0
123 NGC 6774 OpC 19 16 20.9 -16 19 59           ~ 200 0
124 K2-231b Pl 19 16 22.0389081336 -15 46 15.980203956           ~ 9 0
125 2MASS J19335259+4839279 PM* 19 33 52.5862570176 +48 39 27.998095896           M3V 5 0
126 Kepler-1974b Pl 19 35 47.4282354192 +48 03 54.899409312           ~ 3 0
127 Kepler-66b Pl 19 35 55.5742859415 +46 41 15.957071005           ~ 39 1
128 Kepler-67b Pl 19 36 36.8093759520 +46 09 59.166722448           ~ 37 1
129 NGC 6811 OpC 19 37 21.6 +46 22 41   7.47 6.8     ~ 378 0
130 Kepler-1643b Pl 20 01 43.4371739904 +44 45 03.623720616           ~ 9 0
131 ATO J303.6917-23.1065 PM* 20 14 45.9833085672 -23 06 21.692077308   15.740 14.169     M4 7 0
132 1RXS J203300.7+435147 X 20 33 00.696 +43 51 47.48           ~ 1 0
133 EM* StHA 182 ** 20 43 41.142360 -24 33 53.18208       12.379 10.10 M4.1V+M3.7V 38 0
134 HD 197481b Pl? 20 45 09.5324974119 -31 20 27.237889841           ~ 106 0
135 HD 197481c Pl? 20 45 09.5324974119 -31 20 27.237889841           ~ 50 0
136 HD 197481 BY* 20 45 09.5324974119 -31 20 27.237889841   10.05 8.627 9.078 6.593 M1VeBa1 1153 0
137 HD 198767 PM* 20 48 18.0390142896 +69 08 30.525247572   8.58 7.99     G0 13 0
138 2MASS J21364848-2200541 PM* 21 36 48.4906611096 -22 00 54.197639460           ~ 4 0
139 BD+34 4580 PM* 21 59 36.7220765184 +35 41 02.436711720   10.57 9.58     K2 4 0
140 [LM84] 2-4 PM* 22 30 22.1806047480 -38 09 27.953698032   14.674 13.171 12.811   M 5 0
141 BD+36 4976 PM* 23 00 07.2816977496 +36 55 59.236537080   10.75 9.69     K5 4 0
142 PM J23165+2132 PM* 23 16 31.1687614128 +21 32 32.847253980     13.000 12.581   ~ 4 0
143 HD 222259Ab Pl 23 39 39.4808078664 -69 11 44.707735104           ~ 50 0
144 BD+24 4863 PM* 23 57 26.8835772216 +25 06 32.496714864   10.28 9.42     G5 4 0
145 NAME Pleiades Moving Group MGr ~ ~           ~ 277 1
146 NAME Hercules-Lyra Moving Group MGr ~ ~           ~ 64 0
147 NAME Psc-Eri Stream St* ~ ~           ~ 48 0
148 NAME Castor Moving Group As* ~ ~           ~ 129 1

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