Radial velocity confirmation of a hot super-Neptune discovered by TESS with a warm Saturn-mass companion

E. Knudstrup; D. Gandolfi; G. Nowak; C. M. Persson; E. Furlan; J. Livingston; E. Matthews; M. S. Lundkvist; M. L. Winther; J. L. Rørsted; S. H. Albrecht; E. Goffo; I. Carleo; H. J. Deeg; K. A. Collins; N. Narita; H. Isaacson; S. Redfield; F. Dai; T. Hirano; J. M. Akana Murphy; C. Beard; L. A. Buchhave; S. Cary; A. Chontos; I. Crossfield; W. D. Cochran; D. Conti; P. A. Dalba; M. Esposito; S. Fajardo-Acosta; S. Giacalone; S. K. Grunblatt; P. Guerra; A. P. Hatzes; R. Holcomb; F. G. Horta; A. W. Howard; D. Huber; J. M. Jenkins; P. Kabáth; S. Kane; J. Korth; K. W.F. Lam; K. V. Lester; R. Matson; K. K. Mcleod; J. Orell-Miquel; F. Murgas; E. Palle; A. S. Polanski; G. Ricker; P. Robertson; R. Rubenzahl; J. E. Schlieder; S. Seager; A. M.S. Smith; P. Tenenbaum; E. Turtelboom; R. Vanderspek; L. Weiss; J. Winn

doi:10.1093/mnras/stac3684

Radial velocity confirmation of a hot super-Neptune discovered by TESS with a warm Saturn-mass companion

E. Knudstrup, D. Gandolfi, G. Nowak, C. M. Persson, E. Furlan, J. Livingston, E. Matthews, M. S. Lundkvist, M. L. Winther, J. L. Rørsted, S. H. Albrecht, E. Goffo, I. Carleo, H. J. Deeg, K. A. Collins, N. Narita, H. Isaacson, S. Redfield, F. Dai, T. HiranoJ. M. Akana Murphy, C. Beard, L. A. Buchhave, S. Cary, A. Chontos, I. Crossfield, W. D. Cochran, D. Conti, P. A. Dalba, M. Esposito, S. Fajardo-Acosta, S. Giacalone, S. K. Grunblatt, P. Guerra, A. P. Hatzes, R. Holcomb, F. G. Horta, A. W. Howard, D. Huber, J. M. Jenkins, P. Kabáth, S. Kane, J. Korth, K. W.F. Lam, K. V. Lester, R. Matson, K. K. Mcleod, J. Orell-Miquel, F. Murgas, E. Palle, A. S. Polanski, G. Ricker, P. Robertson, R. Rubenzahl, J. E. Schlieder, S. Seager, A. M.S. Smith, P. Tenenbaum, E. Turtelboom, R. Vanderspek, L. Weiss, J. Winn

Astrophysical Sciences

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2 Scopus citations

Abstract

We report the discovery and confirmation of the planetary system TOI-1288. This late G dwarf harbours two planets: TOI-1288 b and TOI-1288 c. We combine TESS space-borne and ground-based transit photometry with HARPS-N and HIRES high-precision Doppler measurements, which we use to constrain the masses of both planets in the system and the radius of planet b. TOI-1288 b has a period of 2.699835+0.000004-0.000003 d, a radius of 5.24 ± 0.09 R⊕, and a mass of 42 ± 3 M⊕, making this planet a hot transiting super-Neptune situated right in the Neptunian desert. This desert refers to a paucity of Neptune-sized planets on short period orbits. Our 2.4-yr-long Doppler monitoring of TOI-1288 revealed the presence of a Saturn-mass planet on a moderately eccentric orbit (0.13+0.07-0.09) with a minimum mass of 84 ± 7 M⊕ and a period of 443+11-13 d. The five sectors worth of TESS data do not cover our expected mid-transit time for TOI-1288 c, and we do not detect a transit for this planet in these sectors.

Original language	English (US)
Pages (from-to)	5637-5655
Number of pages	19
Journal	Monthly Notices of the Royal Astronomical Society
Volume	519
Issue number	4
DOIs	https://doi.org/10.1093/mnras/stac3684
State	Published - Mar 1 2023

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

planets and satellites: detection
techniques: photometric
techniques: radial velocities

Access to Document

10.1093/mnras/stac3684

Cite this

Knudstrup, E., Gandolfi, D., Nowak, G., Persson, C. M., Furlan, E., Livingston, J., Matthews, E., Lundkvist, M. S., Winther, M. L., Rørsted, J. L., Albrecht, S. H., Goffo, E., Carleo, I., Deeg, H. J., Collins, K. A., Narita, N., Isaacson, H., Redfield, S., Dai, F., ... Winn, J. (2023). Radial velocity confirmation of a hot super-Neptune discovered by TESS with a warm Saturn-mass companion. Monthly Notices of the Royal Astronomical Society, 519(4), 5637-5655. https://doi.org/10.1093/mnras/stac3684

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title = "Radial velocity confirmation of a hot super-Neptune discovered by TESS with a warm Saturn-mass companion",

abstract = "We report the discovery and confirmation of the planetary system TOI-1288. This late G dwarf harbours two planets: TOI-1288 b and TOI-1288 c. We combine TESS space-borne and ground-based transit photometry with HARPS-N and HIRES high-precision Doppler measurements, which we use to constrain the masses of both planets in the system and the radius of planet b. TOI-1288 b has a period of 2.699835+0.000004-0.000003 d, a radius of 5.24 ± 0.09 R⊕, and a mass of 42 ± 3 M⊕, making this planet a hot transiting super-Neptune situated right in the Neptunian desert. This desert refers to a paucity of Neptune-sized planets on short period orbits. Our 2.4-yr-long Doppler monitoring of TOI-1288 revealed the presence of a Saturn-mass planet on a moderately eccentric orbit (0.13+0.07-0.09) with a minimum mass of 84 ± 7 M⊕ and a period of 443+11-13 d. The five sectors worth of TESS data do not cover our expected mid-transit time for TOI-1288 c, and we do not detect a transit for this planet in these sectors.",

keywords = "planets and satellites: detection, techniques: photometric, techniques: radial velocities",

author = "E. Knudstrup and D. Gandolfi and G. Nowak and Persson, {C. M.} and E. Furlan and J. Livingston and E. Matthews and Lundkvist, {M. S.} and Winther, {M. L.} and R{\o}rsted, {J. L.} and Albrecht, {S. H.} and E. Goffo and I. Carleo and Deeg, {H. J.} and Collins, {K. A.} and N. Narita and H. Isaacson and S. Redfield and F. Dai and T. Hirano and {Akana Murphy}, {J. M.} and C. Beard and Buchhave, {L. A.} and S. Cary and A. Chontos and I. Crossfield and Cochran, {W. D.} and D. Conti and Dalba, {P. A.} and M. Esposito and S. Fajardo-Acosta and S. Giacalone and Grunblatt, {S. K.} and P. Guerra and Hatzes, {A. P.} and R. Holcomb and Horta, {F. G.} and Howard, {A. W.} and D. Huber and Jenkins, {J. M.} and P. Kab{\'a}th and S. Kane and J. Korth and Lam, {K. W.F.} and Lester, {K. V.} and R. Matson and Mcleod, {K. K.} and J. Orell-Miquel and F. Murgas and E. Palle and Polanski, {A. S.} and G. Ricker and P. Robertson and R. Rubenzahl and Schlieder, {J. E.} and S. Seager and Smith, {A. M.S.} and P. Tenenbaum and E. Turtelboom and R. Vanderspek and L. Weiss and J. Winn",

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year = "2023",

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doi = "10.1093/mnras/stac3684",

language = "English (US)",

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journal = "Monthly Notices of the Royal Astronomical Society",

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Knudstrup, E, Gandolfi, D, Nowak, G, Persson, CM, Furlan, E, Livingston, J, Matthews, E, Lundkvist, MS, Winther, ML, Rørsted, JL, Albrecht, SH, Goffo, E, Carleo, I, Deeg, HJ, Collins, KA, Narita, N, Isaacson, H, Redfield, S, Dai, F, Hirano, T, Akana Murphy, JM, Beard, C, Buchhave, LA, Cary, S, Chontos, A, Crossfield, I, Cochran, WD, Conti, D, Dalba, PA, Esposito, M, Fajardo-Acosta, S, Giacalone, S, Grunblatt, SK, Guerra, P, Hatzes, AP, Holcomb, R, Horta, FG, Howard, AW, Huber, D, Jenkins, JM, Kabáth, P, Kane, S, Korth, J, Lam, KWF, Lester, KV, Matson, R, Mcleod, KK, Orell-Miquel, J, Murgas, F, Palle, E, Polanski, AS, Ricker, G, Robertson, P, Rubenzahl, R, Schlieder, JE, Seager, S, Smith, AMS, Tenenbaum, P, Turtelboom, E, Vanderspek, R, Weiss, L & Winn, J 2023, 'Radial velocity confirmation of a hot super-Neptune discovered by TESS with a warm Saturn-mass companion', Monthly Notices of the Royal Astronomical Society, vol. 519, no. 4, pp. 5637-5655. https://doi.org/10.1093/mnras/stac3684

TY - JOUR

T1 - Radial velocity confirmation of a hot super-Neptune discovered by TESS with a warm Saturn-mass companion

AU - Knudstrup, E.

AU - Gandolfi, D.

AU - Nowak, G.

AU - Persson, C. M.

AU - Furlan, E.

AU - Livingston, J.

AU - Matthews, E.

AU - Lundkvist, M. S.

AU - Winther, M. L.

AU - Rørsted, J. L.

AU - Albrecht, S. H.

AU - Goffo, E.

AU - Carleo, I.

AU - Deeg, H. J.

AU - Collins, K. A.

AU - Narita, N.

AU - Isaacson, H.

AU - Redfield, S.

AU - Dai, F.

AU - Hirano, T.

AU - Akana Murphy, J. M.

AU - Beard, C.

AU - Buchhave, L. A.

AU - Cary, S.

AU - Chontos, A.

AU - Crossfield, I.

AU - Cochran, W. D.

AU - Conti, D.

AU - Dalba, P. A.

AU - Esposito, M.

AU - Fajardo-Acosta, S.

AU - Giacalone, S.

AU - Grunblatt, S. K.

AU - Guerra, P.

AU - Hatzes, A. P.

AU - Holcomb, R.

AU - Horta, F. G.

AU - Howard, A. W.

AU - Huber, D.

AU - Jenkins, J. M.

AU - Kabáth, P.

AU - Kane, S.

AU - Korth, J.

AU - Lam, K. W.F.

AU - Lester, K. V.

AU - Matson, R.

AU - Mcleod, K. K.

AU - Orell-Miquel, J.

AU - Murgas, F.

AU - Palle, E.

AU - Polanski, A. S.

AU - Ricker, G.

AU - Robertson, P.

AU - Rubenzahl, R.

AU - Schlieder, J. E.

AU - Seager, S.

AU - Smith, A. M.S.

AU - Tenenbaum, P.

AU - Turtelboom, E.

AU - Vanderspek, R.

AU - Weiss, L.

AU - Winn, J.

PY - 2023/3/1

Y1 - 2023/3/1

N2 - We report the discovery and confirmation of the planetary system TOI-1288. This late G dwarf harbours two planets: TOI-1288 b and TOI-1288 c. We combine TESS space-borne and ground-based transit photometry with HARPS-N and HIRES high-precision Doppler measurements, which we use to constrain the masses of both planets in the system and the radius of planet b. TOI-1288 b has a period of 2.699835+0.000004-0.000003 d, a radius of 5.24 ± 0.09 R⊕, and a mass of 42 ± 3 M⊕, making this planet a hot transiting super-Neptune situated right in the Neptunian desert. This desert refers to a paucity of Neptune-sized planets on short period orbits. Our 2.4-yr-long Doppler monitoring of TOI-1288 revealed the presence of a Saturn-mass planet on a moderately eccentric orbit (0.13+0.07-0.09) with a minimum mass of 84 ± 7 M⊕ and a period of 443+11-13 d. The five sectors worth of TESS data do not cover our expected mid-transit time for TOI-1288 c, and we do not detect a transit for this planet in these sectors.

AB - We report the discovery and confirmation of the planetary system TOI-1288. This late G dwarf harbours two planets: TOI-1288 b and TOI-1288 c. We combine TESS space-borne and ground-based transit photometry with HARPS-N and HIRES high-precision Doppler measurements, which we use to constrain the masses of both planets in the system and the radius of planet b. TOI-1288 b has a period of 2.699835+0.000004-0.000003 d, a radius of 5.24 ± 0.09 R⊕, and a mass of 42 ± 3 M⊕, making this planet a hot transiting super-Neptune situated right in the Neptunian desert. This desert refers to a paucity of Neptune-sized planets on short period orbits. Our 2.4-yr-long Doppler monitoring of TOI-1288 revealed the presence of a Saturn-mass planet on a moderately eccentric orbit (0.13+0.07-0.09) with a minimum mass of 84 ± 7 M⊕ and a period of 443+11-13 d. The five sectors worth of TESS data do not cover our expected mid-transit time for TOI-1288 c, and we do not detect a transit for this planet in these sectors.

KW - planets and satellites: detection

KW - techniques: photometric

KW - techniques: radial velocities

UR - http://www.scopus.com/inward/record.url?scp=85160330351&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85160330351&partnerID=8YFLogxK

U2 - 10.1093/mnras/stac3684

DO - 10.1093/mnras/stac3684

M3 - Article

AN - SCOPUS:85160330351

SN - 0035-8711

VL - 519

SP - 5637

EP - 5655

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Radial velocity confirmation of a hot super-Neptune discovered by TESS with a warm Saturn-mass companion

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