TOI-824 b: A New Planet on the Lower Edge of the Hot Neptune Desert

Jennifer A. Burt; Louise D. Nielsen; Samuel N. Quinn; Eric E. Mamajek; Elisabeth C. Matthews; George Zhou; Julia V. Seidel; Chelsea X. Huang; Eric Lopez; Maritza Soto; Jon Otegi; Keivan G. Stassun; Laura Kreidberg; Karen A. Collins; Jason D. Eastman; Joseph E. Rodriguez; Andrew Vanderburg; Samuel P. Halverson; Johanna K. Teske; Sharon X. Wang; R. Paul Butler; Franèois Bouchy; Xavier Dumusque; Damien Segransen; Stephen A. Shectman; Jeffrey D. Crane; Fabo Feng; Benjamin T. Montet; Adina D. Feinstein; Yuri Beletski; Erin Flowers; Maximilian N. Günther; Tansu Daylan; Kevin I. Collins; Dennis M. Conti; Tianjun Gan; Eric L.N. Jensen; John F. Kielkopf; Thiam Guan Tan; Ravit Helled; Caroline Dorn; Jonas Haldemann; Jack J. Lissauer; George R. Ricker; Roland Vanderspek; David W. Latham; S. Seager; Joshua N. Winn; Jon M. Jenkins; Joseph D. Twicken; Jeffrey C. Smith; Peter Tenenbaum; Scott Cartwright; Thomas Barclay; Joshua Pepper; Gilbert Esquerdo; William Fong

doi:10.3847/1538-3881/abac0c

TOI-824 b: A New Planet on the Lower Edge of the Hot Neptune Desert

Jennifer A. Burt, Louise D. Nielsen, Samuel N. Quinn, Eric E. Mamajek, Elisabeth C. Matthews, George Zhou, Julia V. Seidel, Chelsea X. Huang, Eric Lopez, Maritza Soto, Jon Otegi, Keivan G. Stassun, Laura Kreidberg, Karen A. Collins, Jason D. Eastman, Joseph E. Rodriguez, Andrew Vanderburg, Samuel P. Halverson, Johanna K. Teske, Sharon X. WangR. Paul Butler, Franèois Bouchy, Xavier Dumusque, Damien Segransen, Stephen A. Shectman, Jeffrey D. Crane, Fabo Feng, Benjamin T. Montet, Adina D. Feinstein, Yuri Beletski, Erin Flowers, Maximilian N. Günther, Tansu Daylan, Kevin I. Collins, Dennis M. Conti, Tianjun Gan, Eric L.N. Jensen, John F. Kielkopf, Thiam Guan Tan, Ravit Helled, Caroline Dorn, Jonas Haldemann, Jack J. Lissauer, George R. Ricker, Roland Vanderspek, David W. Latham, S. Seager, Joshua N. Winn, Jon M. Jenkins, Joseph D. Twicken, Jeffrey C. Smith, Peter Tenenbaum, Scott Cartwright, Thomas Barclay, Joshua Pepper, Gilbert Esquerdo, William Fong

Astrophysical Sciences

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

We report the detection of a transiting hot Neptune exoplanet orbiting TOI-824 (SCR J1448-5735), a nearby (d = 64 pc) K4V star, using data from the Transiting Exoplanet Survey Satellite. The newly discovered planet has a radius R p = 2.93 ± 0.20 R⊕ and an orbital period of 1.393 days. Radial velocity measurements using the Planet Finder Spectrograph and the High Accuracy Radial velocity Planet Searcher spectrograph confirm the existence of the planet, and we estimate its mass to be 18.47 ± 1.84 M⊕. The planet's mean density is ρp = 4.03-0.78+0.98 g cm-3, making it more than twice as dense as Neptune. TOI-824 b's high equilibrium temperature makes the planet likely to have a cloud-free atmosphere, and thus it is an excellent candidate for follow-up atmospheric studies. The detectability of TOI-824 b's atmosphere from both ground and space is promising and could lead to the detailed characterization of the most irradiated small planet at the edge of the hot Neptune desert that has retained its atmosphere to date.

Original language	English (US)
Article number	153
Journal	Astronomical Journal
Volume	160
Issue number	4
DOIs	https://doi.org/10.3847/1538-3881/abac0c
State	Published - Oct 2020

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.3847/1538-3881/abac0c

Cite this

Burt, J. A., Nielsen, L. D., Quinn, S. N., Mamajek, E. E., Matthews, E. C., Zhou, G., Seidel, J. V., Huang, C. X., Lopez, E., Soto, M., Otegi, J., Stassun, K. G., Kreidberg, L., Collins, K. A., Eastman, J. D., Rodriguez, J. E., Vanderburg, A., Halverson, S. P., Teske, J. K., ... Fong, W. (2020). TOI-824 b: A New Planet on the Lower Edge of the Hot Neptune Desert. Astronomical Journal, 160(4), Article 153. https://doi.org/10.3847/1538-3881/abac0c

@article{1623f72aa6864721b8be0808369d3bd1,

title = "TOI-824 b: A New Planet on the Lower Edge of the Hot Neptune Desert",

abstract = "We report the detection of a transiting hot Neptune exoplanet orbiting TOI-824 (SCR J1448-5735), a nearby (d = 64 pc) K4V star, using data from the Transiting Exoplanet Survey Satellite. The newly discovered planet has a radius R p = 2.93 ± 0.20 R⊕ and an orbital period of 1.393 days. Radial velocity measurements using the Planet Finder Spectrograph and the High Accuracy Radial velocity Planet Searcher spectrograph confirm the existence of the planet, and we estimate its mass to be 18.47 ± 1.84 M⊕. The planet's mean density is ρp = 4.03-0.78+0.98 g cm-3, making it more than twice as dense as Neptune. TOI-824 b's high equilibrium temperature makes the planet likely to have a cloud-free atmosphere, and thus it is an excellent candidate for follow-up atmospheric studies. The detectability of TOI-824 b's atmosphere from both ground and space is promising and could lead to the detailed characterization of the most irradiated small planet at the edge of the hot Neptune desert that has retained its atmosphere to date.",

author = "Burt, {Jennifer A.} and Nielsen, {Louise D.} and Quinn, {Samuel N.} and Mamajek, {Eric E.} and Matthews, {Elisabeth C.} and George Zhou and Seidel, {Julia V.} and Huang, {Chelsea X.} and Eric Lopez and Maritza Soto and Jon Otegi and Stassun, {Keivan G.} and Laura Kreidberg and Collins, {Karen A.} and Eastman, {Jason D.} and Rodriguez, {Joseph E.} and Andrew Vanderburg and Halverson, {Samuel P.} and Teske, {Johanna K.} and Wang, {Sharon X.} and Butler, {R. Paul} and Fran{\`e}ois Bouchy and Xavier Dumusque and Damien Segransen and Shectman, {Stephen A.} and Crane, {Jeffrey D.} and Fabo Feng and Montet, {Benjamin T.} and Feinstein, {Adina D.} and Yuri Beletski and Erin Flowers and G{\"u}nther, {Maximilian N.} and Tansu Daylan and Collins, {Kevin I.} and Conti, {Dennis M.} and Tianjun Gan and Jensen, {Eric L.N.} and Kielkopf, {John F.} and Tan, {Thiam Guan} and Ravit Helled and Caroline Dorn and Jonas Haldemann and Lissauer, {Jack J.} and Ricker, {George R.} and Roland Vanderspek and Latham, {David W.} and S. Seager and Winn, {Joshua N.} and Jenkins, {Jon M.} and Twicken, {Joseph D.} and Smith, {Jeffrey C.} and Peter Tenenbaum and Scott Cartwright and Thomas Barclay and Joshua Pepper and Gilbert Esquerdo and William Fong",

year = "2020",

month = oct,

doi = "10.3847/1538-3881/abac0c",

language = "English (US)",

volume = "160",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

number = "4",

}

Burt, JA, Nielsen, LD, Quinn, SN, Mamajek, EE, Matthews, EC, Zhou, G, Seidel, JV, Huang, CX, Lopez, E, Soto, M, Otegi, J, Stassun, KG, Kreidberg, L, Collins, KA, Eastman, JD, Rodriguez, JE, Vanderburg, A, Halverson, SP, Teske, JK, Wang, SX, Butler, RP, Bouchy, F, Dumusque, X, Segransen, D, Shectman, SA, Crane, JD, Feng, F, Montet, BT, Feinstein, AD, Beletski, Y, Flowers, E, Günther, MN, Daylan, T, Collins, KI, Conti, DM, Gan, T, Jensen, ELN, Kielkopf, JF, Tan, TG, Helled, R, Dorn, C, Haldemann, J, Lissauer, JJ, Ricker, GR, Vanderspek, R, Latham, DW, Seager, S, Winn, JN, Jenkins, JM, Twicken, JD, Smith, JC, Tenenbaum, P, Cartwright, S, Barclay, T, Pepper, J, Esquerdo, G & Fong, W 2020, 'TOI-824 b: A New Planet on the Lower Edge of the Hot Neptune Desert', Astronomical Journal, vol. 160, no. 4, 153. https://doi.org/10.3847/1538-3881/abac0c

TY - JOUR

T1 - TOI-824 b

T2 - A New Planet on the Lower Edge of the Hot Neptune Desert

AU - Burt, Jennifer A.

AU - Nielsen, Louise D.

AU - Quinn, Samuel N.

AU - Mamajek, Eric E.

AU - Matthews, Elisabeth C.

AU - Zhou, George

AU - Seidel, Julia V.

AU - Huang, Chelsea X.

AU - Lopez, Eric

AU - Soto, Maritza

AU - Otegi, Jon

AU - Stassun, Keivan G.

AU - Kreidberg, Laura

AU - Collins, Karen A.

AU - Eastman, Jason D.

AU - Rodriguez, Joseph E.

AU - Vanderburg, Andrew

AU - Halverson, Samuel P.

AU - Teske, Johanna K.

AU - Wang, Sharon X.

AU - Butler, R. Paul

AU - Bouchy, Franèois

AU - Dumusque, Xavier

AU - Segransen, Damien

AU - Shectman, Stephen A.

AU - Crane, Jeffrey D.

AU - Feng, Fabo

AU - Montet, Benjamin T.

AU - Feinstein, Adina D.

AU - Beletski, Yuri

AU - Flowers, Erin

AU - Günther, Maximilian N.

AU - Daylan, Tansu

AU - Collins, Kevin I.

AU - Conti, Dennis M.

AU - Gan, Tianjun

AU - Jensen, Eric L.N.

AU - Kielkopf, John F.

AU - Tan, Thiam Guan

AU - Helled, Ravit

AU - Dorn, Caroline

AU - Haldemann, Jonas

AU - Lissauer, Jack J.

AU - Ricker, George R.

AU - Vanderspek, Roland

AU - Latham, David W.

AU - Seager, S.

AU - Winn, Joshua N.

AU - Jenkins, Jon M.

AU - Twicken, Joseph D.

AU - Smith, Jeffrey C.

AU - Tenenbaum, Peter

AU - Cartwright, Scott

AU - Barclay, Thomas

AU - Pepper, Joshua

AU - Esquerdo, Gilbert

AU - Fong, William

PY - 2020/10

Y1 - 2020/10

N2 - We report the detection of a transiting hot Neptune exoplanet orbiting TOI-824 (SCR J1448-5735), a nearby (d = 64 pc) K4V star, using data from the Transiting Exoplanet Survey Satellite. The newly discovered planet has a radius R p = 2.93 ± 0.20 R⊕ and an orbital period of 1.393 days. Radial velocity measurements using the Planet Finder Spectrograph and the High Accuracy Radial velocity Planet Searcher spectrograph confirm the existence of the planet, and we estimate its mass to be 18.47 ± 1.84 M⊕. The planet's mean density is ρp = 4.03-0.78+0.98 g cm-3, making it more than twice as dense as Neptune. TOI-824 b's high equilibrium temperature makes the planet likely to have a cloud-free atmosphere, and thus it is an excellent candidate for follow-up atmospheric studies. The detectability of TOI-824 b's atmosphere from both ground and space is promising and could lead to the detailed characterization of the most irradiated small planet at the edge of the hot Neptune desert that has retained its atmosphere to date.

AB - We report the detection of a transiting hot Neptune exoplanet orbiting TOI-824 (SCR J1448-5735), a nearby (d = 64 pc) K4V star, using data from the Transiting Exoplanet Survey Satellite. The newly discovered planet has a radius R p = 2.93 ± 0.20 R⊕ and an orbital period of 1.393 days. Radial velocity measurements using the Planet Finder Spectrograph and the High Accuracy Radial velocity Planet Searcher spectrograph confirm the existence of the planet, and we estimate its mass to be 18.47 ± 1.84 M⊕. The planet's mean density is ρp = 4.03-0.78+0.98 g cm-3, making it more than twice as dense as Neptune. TOI-824 b's high equilibrium temperature makes the planet likely to have a cloud-free atmosphere, and thus it is an excellent candidate for follow-up atmospheric studies. The detectability of TOI-824 b's atmosphere from both ground and space is promising and could lead to the detailed characterization of the most irradiated small planet at the edge of the hot Neptune desert that has retained its atmosphere to date.

UR - http://www.scopus.com/inward/record.url?scp=85091500111&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85091500111&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/abac0c

DO - 10.3847/1538-3881/abac0c

M3 - Article

AN - SCOPUS:85091500111

SN - 0004-6256

VL - 160

JO - Astronomical Journal

JF - Astronomical Journal

IS - 4

M1 - 153

ER -

TOI-824 b: A New Planet on the Lower Edge of the Hot Neptune Desert

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this