The young HD 73583 (TOI-560) planetary system: two 10-M mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf

O. Barragán; D. J. Armstrong; D. Gandolfi; I. Carleo; A. A. Vidotto; C. Villarreal D'Angelo; A. Oklopčić; H. Isaacson; D. Oddo; K. Collins; M. Fridlund; S. G. Sousa; C. M. Persson; C. Hellier; S. Howell; A. Howard; S. Redfield; N. Eisner; I. Y. Georgieva; D. Dragomir; D. Bayliss; L. D. Nielsen; B. Klein; S. Aigrain; M. Zhang; J. Teske; J. D. Twicken; J. Jenkins; M. Esposito; V. Van Eylen; F. Rodler; V. Adibekyan; J. Alarcon; D. R. Anderson; J. M. Akana Murphy; D. Barrado; S. C.C. Barros; B. Benneke; F. Bouchy; E. M. Bryant; R. P. Butler; J. Burt; J. Cabrera; S. Casewell; P. Chaturvedi; R. Cloutier; W. D. Cochran; J. Crane; I. Crossfield; N. Crouzet; K. I. Collins; F. Dai; H. J. Deeg; A. Deline; O. D.S. Demangeon; X. Dumusque; P. Figueira; E. Furlan; C. Gnilka; M. R. Goad; E. Goffo; F. Gutiérrez-Canales; A. Hadjigeorghiou; Z. Hartman; A. P. Hatzes; M. Harris; B. Henderson; T. Hirano; S. Hojjatpanah; S. Hoyer; P. Kabáth; J. Korth; J. Lillo-Box; R. Luque; M. Marmier; T. Močnik; A. Muresan; F. Murgas; E. Nagel; H. L.M. Osborne; A. Osborn; H. P. Osborn; E. Palle; M. Raimbault; G. R. Ricker; R. A. Rubenzahl; C. Stockdale; N. C. Santos; N. Scott; R. P. Schwarz; S. Shectman; M. Raimbault; S. Seager; D. Ségransan; L. M. Serrano; M. Skarka; A. M.S. Smith; J. Šubjak; T. G. Tan; S. Udry; C. Watson; P. J. Wheatley; R. West; J. N. Winn; S. X. Wang; A. Wolfgang; C. Ziegler

doi:10.1093/mnras/stac638

The young HD 73583 (TOI-560) planetary system: two 10-M mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf

O. Barragán, D. J. Armstrong, D. Gandolfi, I. Carleo, A. A. Vidotto, C. Villarreal D'Angelo, A. Oklopčić, H. Isaacson, D. Oddo, K. Collins, M. Fridlund, S. G. Sousa, C. M. Persson, C. Hellier, S. Howell, A. Howard, S. Redfield, N. Eisner, I. Y. Georgieva, D. DragomirD. Bayliss, L. D. Nielsen, B. Klein, S. Aigrain, M. Zhang, J. Teske, J. D. Twicken, J. Jenkins, M. Esposito, V. Van Eylen, F. Rodler, V. Adibekyan, J. Alarcon, D. R. Anderson, J. M. Akana Murphy, D. Barrado, S. C.C. Barros, B. Benneke, F. Bouchy, E. M. Bryant, R. P. Butler, J. Burt, J. Cabrera, S. Casewell, P. Chaturvedi, R. Cloutier, W. D. Cochran, J. Crane, I. Crossfield, N. Crouzet, K. I. Collins, F. Dai, H. J. Deeg, A. Deline, O. D.S. Demangeon, X. Dumusque, P. Figueira, E. Furlan, C. Gnilka, M. R. Goad, E. Goffo, F. Gutiérrez-Canales, A. Hadjigeorghiou, Z. Hartman, A. P. Hatzes, M. Harris, B. Henderson, T. Hirano, S. Hojjatpanah, S. Hoyer, P. Kabáth, J. Korth, J. Lillo-Box, R. Luque, M. Marmier, T. Močnik, A. Muresan, F. Murgas, E. Nagel, H. L.M. Osborne, A. Osborn, H. P. Osborn, E. Palle, M. Raimbault, G. R. Ricker, R. A. Rubenzahl, C. Stockdale, N. C. Santos, N. Scott, R. P. Schwarz, S. Shectman, M. Raimbault, S. Seager, D. Ségransan, L. M. Serrano, M. Skarka, A. M.S. Smith, J. Šubjak, T. G. Tan, S. Udry, C. Watson, P. J. Wheatley, R. West, J. N. Winn, S. X. Wang, A. Wolfgang, C. Ziegler

Physics and Astronomy

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

Abstract

The study presents the discovery and characterization of two exoplanets observed by NASA's TESS (Transiting Exoplanet Survey Satellite) in the light curves of the young and bright star HD73583, also known as TOI-560. Extensive follow-up observations, including spectroscopic and photometric measurements from space and ground-based instruments, were conducted to confirm and understand the properties of this planetary system.

The star HD73583 is relatively young, estimated to be around 500 million years old, and exhibits activity with a rotational period of approximately 12.08 days. It has a mass of about 0.73 times that of the Sun and a radius of about 0.65 times that of the Sun.

The first planet, HD 73583 b, has an orbital period of about 6.4 days. It has a mass of approximately 10.2 times that of Earth and a radius of about 2.79 times that of Earth, resulting in a density of about 2.58 grams per cubic centimeter. This suggests that it likely has a solid core surrounded by a volatile envelope.

The second planet, HD 73583 c, has a longer orbital period of approximately 18.88 days. It has a mass of about 9.7 times that of Earth and a radius of about 2.39 times that of Earth, with a density of about 3.88 grams per cubic centimeter, again indicating a solid core with a volatile envelope.

Both planets are considered suitable candidates for future transmission spectroscopy studies due to their youth and the brightness of their host star. The study also suggests that ongoing atmospheric mass-loss is expected for both planets due to the intense stellar radiation they receive. Detecting signs of evaporating atmospheres composed of hydrogen and helium would be challenging but achievable with current and upcoming astronomical instruments.

Original language	English
Pages (from-to)	1606-1627
Number of pages	22
Journal	Monthly Notices of the Royal Astronomical Society
Volume	514
Issue number	2
DOIs	https://doi.org/10.1093/mnras/stac638
State	Published - Aug 1 2022

ASJC Scopus Subject Areas

Astronomy and Astrophysics
Space and Planetary Science

Keywords

planets and satellites: individual: HD 73583 (TOI-560)
stars: activity
techniques: photometric
techniques: radial velocities

Access to Document

10.1093/mnras/stac638

Cite this

Barragán, O., Armstrong, D. J., Gandolfi, D., Carleo, I., Vidotto, A. A., Villarreal D'Angelo, C., Oklopčić, A., Isaacson, H., Oddo, D., Collins, K., Fridlund, M., Sousa, S. G., Persson, C. M., Hellier, C., Howell, S., Howard, A., Redfield, S., Eisner, N., Georgieva, I. Y., ... Ziegler, C. (2022). The young HD 73583 (TOI-560) planetary system: two 10-M mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf. Monthly Notices of the Royal Astronomical Society, 514(2), 1606-1627. https://doi.org/10.1093/mnras/stac638

Barragán, O, Armstrong, DJ, Gandolfi, D, Carleo, I, Vidotto, AA, Villarreal D'Angelo, C, Oklopčić, A, Isaacson, H, Oddo, D, Collins, K, Fridlund, M, Sousa, SG, Persson, CM, Hellier, C, Howell, S, Howard, A, Redfield, S, Eisner, N, Georgieva, IY, Dragomir, D, Bayliss, D, Nielsen, LD, Klein, B, Aigrain, S, Zhang, M, Teske, J, Twicken, JD, Jenkins, J, Esposito, M, Van Eylen, V, Rodler, F, Adibekyan, V, Alarcon, J, Anderson, DR, Akana Murphy, JM, Barrado, D, Barros, SCC, Benneke, B, Bouchy, F, Bryant, EM, Butler, RP, Burt, J, Cabrera, J, Casewell, S, Chaturvedi, P, Cloutier, R, Cochran, WD, Crane, J, Crossfield, I, Crouzet, N, Collins, KI, Dai, F, Deeg, HJ, Deline, A, Demangeon, ODS, Dumusque, X, Figueira, P, Furlan, E, Gnilka, C, Goad, MR, Goffo, E, Gutiérrez-Canales, F, Hadjigeorghiou, A, Hartman, Z, Hatzes, AP, Harris, M, Henderson, B, Hirano, T, Hojjatpanah, S, Hoyer, S, Kabáth, P, Korth, J, Lillo-Box, J, Luque, R, Marmier, M, Močnik, T, Muresan, A, Murgas, F, Nagel, E, Osborne, HLM, Osborn, A, Osborn, HP, Palle, E, Raimbault, M, Ricker, GR, Rubenzahl, RA, Stockdale, C, Santos, NC, Scott, N, Schwarz, RP, Shectman, S, Raimbault, M, Seager, S, Ségransan, D, Serrano, LM, Skarka, M, Smith, AMS, Šubjak, J, Tan, TG, Udry, S, Watson, C, Wheatley, PJ, West, R, Winn, JN, Wang, SX, Wolfgang, A & Ziegler, C 2022, 'The young HD 73583 (TOI-560) planetary system: two 10-M mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf', Monthly Notices of the Royal Astronomical Society, vol. 514, no. 2, pp. 1606-1627. https://doi.org/10.1093/mnras/stac638

@article{016ed724928c49cca575e8fbd5343e36,

title = "The young HD 73583 (TOI-560) planetary system: two 10-M mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf",

abstract = "The study presents the discovery and characterization of two exoplanets observed by NASA's TESS (Transiting Exoplanet Survey Satellite) in the light curves of the young and bright star HD73583, also known as TOI-560. Extensive follow-up observations, including spectroscopic and photometric measurements from space and ground-based instruments, were conducted to confirm and understand the properties of this planetary system.The star HD73583 is relatively young, estimated to be around 500 million years old, and exhibits activity with a rotational period of approximately 12.08 days. It has a mass of about 0.73 times that of the Sun and a radius of about 0.65 times that of the Sun.The first planet, HD 73583 b, has an orbital period of about 6.4 days. It has a mass of approximately 10.2 times that of Earth and a radius of about 2.79 times that of Earth, resulting in a density of about 2.58 grams per cubic centimeter. This suggests that it likely has a solid core surrounded by a volatile envelope.The second planet, HD 73583 c, has a longer orbital period of approximately 18.88 days. It has a mass of about 9.7 times that of Earth and a radius of about 2.39 times that of Earth, with a density of about 3.88 grams per cubic centimeter, again indicating a solid core with a volatile envelope.Both planets are considered suitable candidates for future transmission spectroscopy studies due to their youth and the brightness of their host star. The study also suggests that ongoing atmospheric mass-loss is expected for both planets due to the intense stellar radiation they receive. Detecting signs of evaporating atmospheres composed of hydrogen and helium would be challenging but achievable with current and upcoming astronomical instruments.",

keywords = "planets and satellites: individual: HD 73583 (TOI-560), stars: activity, techniques: photometric, techniques: radial velocities",

author = "O. Barrag{\'a}n and Armstrong, {D. J.} and D. Gandolfi and I. Carleo and Vidotto, {A. A.} and {Villarreal D'Angelo}, C. and A. Oklop{\v c}i{\'c} and H. Isaacson and D. Oddo and K. Collins and M. Fridlund and Sousa, {S. G.} and Persson, {C. M.} and C. Hellier and S. Howell and A. Howard and S. Redfield and N. Eisner and Georgieva, {I. Y.} and D. Dragomir and D. Bayliss and Nielsen, {L. D.} and B. Klein and S. Aigrain and M. Zhang and J. Teske and Twicken, {J. D.} and J. Jenkins and M. Esposito and {Van Eylen}, V. and F. Rodler and V. Adibekyan and J. Alarcon and Anderson, {D. R.} and {Akana Murphy}, {J. M.} and D. Barrado and Barros, {S. C.C.} and B. Benneke and F. Bouchy and Bryant, {E. M.} and Butler, {R. P.} and J. Burt and J. Cabrera and S. Casewell and P. Chaturvedi and R. Cloutier and Cochran, {W. D.} and J. Crane and I. Crossfield and N. Crouzet and Collins, {K. I.} and F. Dai and Deeg, {H. J.} and A. Deline and Demangeon, {O. D.S.} and X. Dumusque and P. Figueira and E. Furlan and C. Gnilka and Goad, {M. R.} and E. Goffo and F. Guti{\'e}rrez-Canales and A. Hadjigeorghiou and Z. Hartman and Hatzes, {A. P.} and M. Harris and B. Henderson and T. Hirano and S. Hojjatpanah and S. Hoyer and P. Kab{\'a}th and J. Korth and J. Lillo-Box and R. Luque and M. Marmier and T. Mo{\v c}nik and A. Muresan and F. Murgas and E. Nagel and Osborne, {H. L.M.} and A. Osborn and Osborn, {H. P.} and E. Palle and M. Raimbault and Ricker, {G. R.} and Rubenzahl, {R. A.} and C. Stockdale and Santos, {N. C.} and N. Scott and Schwarz, {R. P.} and S. Shectman and M. Raimbault and S. Seager and D. S{\'e}gransan and Serrano, {L. M.} and M. Skarka and Smith, {A. M.S.} and J. {\v S}ubjak and Tan, {T. G.} and S. Udry and C. Watson and Wheatley, {P. J.} and R. West and Winn, {J. N.} and Wang, {S. X.} and A. Wolfgang and C. Ziegler",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s) 2022. Published by Oxford University Press on behalf of Royal Astronomical Society.",

year = "2022",

month = aug,

day = "1",

doi = "10.1093/mnras/stac638",

language = "English",

volume = "514",

pages = "1606--1627",

number = "2",

}

TY - JOUR

T1 - The young HD 73583 (TOI-560) planetary system

T2 - two 10-M mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf

AU - Barragán, O.

AU - Armstrong, D. J.

AU - Gandolfi, D.

AU - Carleo, I.

AU - Vidotto, A. A.

AU - Villarreal D'Angelo, C.

AU - Oklopčić, A.

AU - Isaacson, H.

AU - Oddo, D.

AU - Collins, K.

AU - Fridlund, M.

AU - Sousa, S. G.

AU - Persson, C. M.

AU - Hellier, C.

AU - Howell, S.

AU - Howard, A.

AU - Redfield, S.

AU - Eisner, N.

AU - Georgieva, I. Y.

AU - Dragomir, D.

AU - Bayliss, D.

AU - Nielsen, L. D.

AU - Klein, B.

AU - Aigrain, S.

AU - Zhang, M.

AU - Teske, J.

AU - Twicken, J. D.

AU - Jenkins, J.

AU - Esposito, M.

AU - Van Eylen, V.

AU - Rodler, F.

AU - Adibekyan, V.

AU - Alarcon, J.

AU - Anderson, D. R.

AU - Akana Murphy, J. M.

AU - Barrado, D.

AU - Barros, S. C.C.

AU - Benneke, B.

AU - Bouchy, F.

AU - Bryant, E. M.

AU - Butler, R. P.

AU - Burt, J.

AU - Cabrera, J.

AU - Casewell, S.

AU - Chaturvedi, P.

AU - Cloutier, R.

AU - Cochran, W. D.

AU - Crane, J.

AU - Crossfield, I.

AU - Crouzet, N.

AU - Collins, K. I.

AU - Dai, F.

AU - Deeg, H. J.

AU - Deline, A.

AU - Demangeon, O. D.S.

AU - Dumusque, X.

AU - Figueira, P.

AU - Furlan, E.

AU - Gnilka, C.

AU - Goad, M. R.

AU - Goffo, E.

AU - Gutiérrez-Canales, F.

AU - Hadjigeorghiou, A.

AU - Hartman, Z.

AU - Hatzes, A. P.

AU - Harris, M.

AU - Henderson, B.

AU - Hirano, T.

AU - Hojjatpanah, S.

AU - Hoyer, S.

AU - Kabáth, P.

AU - Korth, J.

AU - Lillo-Box, J.

AU - Luque, R.

AU - Marmier, M.

AU - Močnik, T.

AU - Muresan, A.

AU - Murgas, F.

AU - Nagel, E.

AU - Osborne, H. L.M.

AU - Osborn, A.

AU - Osborn, H. P.

AU - Palle, E.

AU - Raimbault, M.

AU - Ricker, G. R.

AU - Rubenzahl, R. A.

AU - Stockdale, C.

AU - Santos, N. C.

AU - Scott, N.

AU - Schwarz, R. P.

AU - Shectman, S.

AU - Raimbault, M.

AU - Seager, S.

AU - Ségransan, D.

AU - Serrano, L. M.

AU - Skarka, M.

AU - Smith, A. M.S.

AU - Šubjak, J.

AU - Tan, T. G.

AU - Udry, S.

AU - Watson, C.

AU - Wheatley, P. J.

AU - West, R.

AU - Winn, J. N.

AU - Wang, S. X.

AU - Wolfgang, A.

AU - Ziegler, C.

PY - 2022/8/1

Y1 - 2022/8/1

N2 - The study presents the discovery and characterization of two exoplanets observed by NASA's TESS (Transiting Exoplanet Survey Satellite) in the light curves of the young and bright star HD73583, also known as TOI-560. Extensive follow-up observations, including spectroscopic and photometric measurements from space and ground-based instruments, were conducted to confirm and understand the properties of this planetary system.The star HD73583 is relatively young, estimated to be around 500 million years old, and exhibits activity with a rotational period of approximately 12.08 days. It has a mass of about 0.73 times that of the Sun and a radius of about 0.65 times that of the Sun.The first planet, HD 73583 b, has an orbital period of about 6.4 days. It has a mass of approximately 10.2 times that of Earth and a radius of about 2.79 times that of Earth, resulting in a density of about 2.58 grams per cubic centimeter. This suggests that it likely has a solid core surrounded by a volatile envelope.The second planet, HD 73583 c, has a longer orbital period of approximately 18.88 days. It has a mass of about 9.7 times that of Earth and a radius of about 2.39 times that of Earth, with a density of about 3.88 grams per cubic centimeter, again indicating a solid core with a volatile envelope.Both planets are considered suitable candidates for future transmission spectroscopy studies due to their youth and the brightness of their host star. The study also suggests that ongoing atmospheric mass-loss is expected for both planets due to the intense stellar radiation they receive. Detecting signs of evaporating atmospheres composed of hydrogen and helium would be challenging but achievable with current and upcoming astronomical instruments.

AB - The study presents the discovery and characterization of two exoplanets observed by NASA's TESS (Transiting Exoplanet Survey Satellite) in the light curves of the young and bright star HD73583, also known as TOI-560. Extensive follow-up observations, including spectroscopic and photometric measurements from space and ground-based instruments, were conducted to confirm and understand the properties of this planetary system.The star HD73583 is relatively young, estimated to be around 500 million years old, and exhibits activity with a rotational period of approximately 12.08 days. It has a mass of about 0.73 times that of the Sun and a radius of about 0.65 times that of the Sun.The first planet, HD 73583 b, has an orbital period of about 6.4 days. It has a mass of approximately 10.2 times that of Earth and a radius of about 2.79 times that of Earth, resulting in a density of about 2.58 grams per cubic centimeter. This suggests that it likely has a solid core surrounded by a volatile envelope.The second planet, HD 73583 c, has a longer orbital period of approximately 18.88 days. It has a mass of about 9.7 times that of Earth and a radius of about 2.39 times that of Earth, with a density of about 3.88 grams per cubic centimeter, again indicating a solid core with a volatile envelope.Both planets are considered suitable candidates for future transmission spectroscopy studies due to their youth and the brightness of their host star. The study also suggests that ongoing atmospheric mass-loss is expected for both planets due to the intense stellar radiation they receive. Detecting signs of evaporating atmospheres composed of hydrogen and helium would be challenging but achievable with current and upcoming astronomical instruments.

KW - planets and satellites: individual: HD 73583 (TOI-560)

KW - stars: activity

KW - techniques: photometric

KW - techniques: radial velocities

UR - http://www.scopus.com/inward/record.url?scp=85133604712&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85133604712&partnerID=8YFLogxK

U2 - 10.1093/mnras/stac638

DO - 10.1093/mnras/stac638

M3 - Article

AN - SCOPUS:85133604712

SN - 0035-8711

VL - 514

SP - 1606

EP - 1627

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

The young HD 73583 (TOI-560) planetary system: two 10-M mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf

Abstract

ASJC Scopus Subject Areas

Keywords

Access to Document

Other files and links

Cite this