HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short-period Transiting Giant Planets in the Neptune-Jupiter Mass Range

R. Brahm; J. D. Hartman; A. Jordán; G. A. Bakos; N. Espinoza; M. Rabus; W. Bhatti; K. Penev; P. Sarkis; V. Suc; Z. Csubry; D. Bayliss; J. Bento; G. Zhou; L. Mancini; T. Henning; S. Ciceri; M. De Val-Borro; S. Shectman; J. D. Crane; P. Arriagada; P. Butler; J. Teske; I. Thompson; D. Osip; M. Díaz; B. Schmidt; J. Lázár; I. Papp; P. Sári

doi:10.3847/1538-3881/aaa898

HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short-period Transiting Giant Planets in the Neptune-Jupiter Mass Range

R. Brahm, J. D. Hartman, A. Jordán, G. A. Bakos, N. Espinoza, M. Rabus, W. Bhatti, K. Penev, P. Sarkis, V. Suc, Z. Csubry, D. Bayliss, J. Bento, G. Zhou, L. Mancini, T. Henning, S. Ciceri, M. De Val-Borro, S. Shectman, J. D. CraneP. Arriagada, P. Butler, J. Teske, I. Thompson, D. Osip, M. Díaz, B. Schmidt, J. Lázár, I. Papp, P. Sári

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Abstract

We report the discovery of four short-period extrasolar planets transiting moderately bright stars from photometric measurements of the HATSouth network coupled to additional spectroscopic and photometric follow-up observations. While the planet masses range from 0.26 to 0.90 M_J, the radii are all approximately a Jupiter radii, resulting in a wide range of bulk densities. The orbital period of the planets ranges from 2.7 days to 4.7 days, with HATS-43b having an orbit that appears to be marginally non-circular (e = 0.173 ± 0.089). HATS-44 is notable for having a high metallicity ([Fe H]= 0.320 ± 0.071). The host stars spectral types range from late F to early K, and all of them are moderately bright (13.3 < V < 14.4), allowing the execution of future detailed follow-up observations. HATS-43b and HATS-46b, with expected transmission signals of 2350 ppm and 1500 ppm, respectively, are particularly well suited targets for atmospheric characterization via transmission spectroscopy.

Original language	English
Article number	112
Journal	Astronomical Journal
Volume	155
Issue number	3
DOIs	https://doi.org/10.3847/1538-3881/aaa898
Publication status	Published - Mar 2018

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Brahm, R., Hartman, J. D., Jordán, A., Bakos, G. A., Espinoza, N., Rabus, M., Bhatti, W., Penev, K., Sarkis, P., Suc, V., Csubry, Z., Bayliss, D., Bento, J., Zhou, G., Mancini, L., Henning, T., Ciceri, S., Val-Borro, M. D., Shectman, S., ... Sári, P. (2018). HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short-period Transiting Giant Planets in the Neptune-Jupiter Mass Range. Astronomical Journal, 155(3), Article 112. https://doi.org/10.3847/1538-3881/aaa898

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title = "HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short-period Transiting Giant Planets in the Neptune-Jupiter Mass Range",

abstract = "We report the discovery of four short-period extrasolar planets transiting moderately bright stars from photometric measurements of the HATSouth network coupled to additional spectroscopic and photometric follow-up observations. While the planet masses range from 0.26 to 0.90 MJ, the radii are all approximately a Jupiter radii, resulting in a wide range of bulk densities. The orbital period of the planets ranges from 2.7 days to 4.7 days, with HATS-43b having an orbit that appears to be marginally non-circular (e = 0.173 ± 0.089). HATS-44 is notable for having a high metallicity ([Fe H]= 0.320 ± 0.071). The host stars spectral types range from late F to early K, and all of them are moderately bright (13.3 < V < 14.4), allowing the execution of future detailed follow-up observations. HATS-43b and HATS-46b, with expected transmission signals of 2350 ppm and 1500 ppm, respectively, are particularly well suited targets for atmospheric characterization via transmission spectroscopy.",

keywords = "planetary systems, stars: individual (HATS-43, HATS-44, HATS-45, HATS-46)",

author = "R. Brahm and Hartman, {J. D.} and A. Jord{\'a}n and Bakos, {G. A.} and N. Espinoza and M. Rabus and W. Bhatti and K. Penev and P. Sarkis and V. Suc and Z. Csubry and D. Bayliss and J. Bento and G. Zhou and L. Mancini and T. Henning and S. Ciceri and Val-Borro, {M. De} and S. Shectman and Crane, {J. D.} and P. Arriagada and P. Butler and J. Teske and I. Thompson and D. Osip and M. D{\'i}az and B. Schmidt and J. L{\'a}z{\'a}r and I. Papp and P. S{\'a}ri",

year = "2018",

month = mar,

doi = "10.3847/1538-3881/aaa898",

language = "English",

volume = "155",

journal = "Astronomical Journal",

issn = "0004-6256",

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Brahm, R, Hartman, JD, Jordán, A, Bakos, GA, Espinoza, N, Rabus, M, Bhatti, W, Penev, K, Sarkis, P, Suc, V, Csubry, Z, Bayliss, D, Bento, J, Zhou, G, Mancini, L, Henning, T, Ciceri, S, Val-Borro, MD, Shectman, S, Crane, JD, Arriagada, P, Butler, P, Teske, J, Thompson, I, Osip, D, Díaz, M, Schmidt, B, Lázár, J, Papp, I & Sári, P 2018, 'HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short-period Transiting Giant Planets in the Neptune-Jupiter Mass Range', Astronomical Journal, vol. 155, no. 3, 112. https://doi.org/10.3847/1538-3881/aaa898

TY - JOUR

T1 - HATS-43b, HATS-44b, HATS-45b, and HATS-46b

T2 - Four Short-period Transiting Giant Planets in the Neptune-Jupiter Mass Range

AU - Brahm, R.

AU - Hartman, J. D.

AU - Jordán, A.

AU - Bakos, G. A.

AU - Espinoza, N.

AU - Rabus, M.

AU - Bhatti, W.

AU - Penev, K.

AU - Sarkis, P.

AU - Suc, V.

AU - Csubry, Z.

AU - Bayliss, D.

AU - Bento, J.

AU - Zhou, G.

AU - Mancini, L.

AU - Henning, T.

AU - Ciceri, S.

AU - Val-Borro, M. De

AU - Shectman, S.

AU - Crane, J. D.

AU - Arriagada, P.

AU - Butler, P.

AU - Teske, J.

AU - Thompson, I.

AU - Osip, D.

AU - Díaz, M.

AU - Schmidt, B.

AU - Lázár, J.

AU - Papp, I.

AU - Sári, P.

PY - 2018/3

Y1 - 2018/3

N2 - We report the discovery of four short-period extrasolar planets transiting moderately bright stars from photometric measurements of the HATSouth network coupled to additional spectroscopic and photometric follow-up observations. While the planet masses range from 0.26 to 0.90 MJ, the radii are all approximately a Jupiter radii, resulting in a wide range of bulk densities. The orbital period of the planets ranges from 2.7 days to 4.7 days, with HATS-43b having an orbit that appears to be marginally non-circular (e = 0.173 ± 0.089). HATS-44 is notable for having a high metallicity ([Fe H]= 0.320 ± 0.071). The host stars spectral types range from late F to early K, and all of them are moderately bright (13.3 < V < 14.4), allowing the execution of future detailed follow-up observations. HATS-43b and HATS-46b, with expected transmission signals of 2350 ppm and 1500 ppm, respectively, are particularly well suited targets for atmospheric characterization via transmission spectroscopy.

AB - We report the discovery of four short-period extrasolar planets transiting moderately bright stars from photometric measurements of the HATSouth network coupled to additional spectroscopic and photometric follow-up observations. While the planet masses range from 0.26 to 0.90 MJ, the radii are all approximately a Jupiter radii, resulting in a wide range of bulk densities. The orbital period of the planets ranges from 2.7 days to 4.7 days, with HATS-43b having an orbit that appears to be marginally non-circular (e = 0.173 ± 0.089). HATS-44 is notable for having a high metallicity ([Fe H]= 0.320 ± 0.071). The host stars spectral types range from late F to early K, and all of them are moderately bright (13.3 < V < 14.4), allowing the execution of future detailed follow-up observations. HATS-43b and HATS-46b, with expected transmission signals of 2350 ppm and 1500 ppm, respectively, are particularly well suited targets for atmospheric characterization via transmission spectroscopy.

KW - planetary systems

KW - stars: individual (HATS-43, HATS-44, HATS-45, HATS-46)

UR - http://www.scopus.com/inward/record.url?scp=85043533965&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/aaa898

DO - 10.3847/1538-3881/aaa898

M3 - Article

SN - 0004-6256

VL - 155

JO - Astronomical Journal

JF - Astronomical Journal

IS - 3

M1 - 112

ER -

HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short-period Transiting Giant Planets in the Neptune-Jupiter Mass Range

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