Three low-mass companions around aged stars discovered by TESS

Zitao Lin; Tianjun Gan; Sharon X. Wang; Avi Shporer; Markus Rabus; George Zhou; Angelica Psaridi; François Bouchy; Allyson Bieryla; David W. Latham; Shude Mao; Keivan G. Stassun; Coel Hellier; Steve B. Howell; Carl Ziegler; Douglas A. Caldwell; Catherine A. Clark; Karen A. Collins; Jason L. Curtis; Jacqueline K. Faherty; Crystal L. Gnilka; Samuel K. Grunblatt; Jon M. Jenkins; Marshall C. Johnson; Nicholas Law; Monika Lendl; Colin Littlefield; Michael B. Lund; Mikkel N. Lund; Andrew W. Mann; Scott McDermott; Lokesh Mishra; Dany Mounzer; Martin Paegert; Tyler Pritchard; George R. Ricker; Sara Seager; Gregor Srdoc; Qinghui Sun; Jiaxin Tang; Stephane Udry; Roland Vanderspek; David Watanabe; Joshua N. Winn; Jie Yu

doi:10.1093/mnras/stad1745

Three low-mass companions around aged stars discovered by TESS

Zitao Lin, Tianjun Gan, Sharon X. Wang, Avi Shporer, Markus Rabus, George Zhou, Angelica Psaridi, François Bouchy, Allyson Bieryla, David W. Latham, Shude Mao, Keivan G. Stassun, Coel Hellier, Steve B. Howell, Carl Ziegler, Douglas A. Caldwell, Catherine A. Clark, Karen A. Collins, Jason L. Curtis, Jacqueline K. FahertyCrystal L. Gnilka, Samuel K. Grunblatt, Jon M. Jenkins, Marshall C. Johnson, Nicholas Law, Monika Lendl, Colin Littlefield, Michael B. Lund, Mikkel N. Lund, Andrew W. Mann, Scott McDermott, Lokesh Mishra, Dany Mounzer, Martin Paegert, Tyler Pritchard, George R. Ricker, Sara Seager, Gregor Srdoc, Qinghui Sun, Jiaxin Tang, Stephane Udry, Roland Vanderspek, David Watanabe, Joshua N. Winn, Jie Yu

Physics and Astronomy

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

Abstract

Three low-mass celestial companions to older stars have been identified using data from the Transiting Exoplanet Survey Satellite (TESS). These include a brown dwarf (TOI-2336b) and two objects near the hydrogen burning mass limit (TOI-1608b and TOI-2521b). All of them appear to be inflated in size. There's a positive correlation between the flux and the radius for brown dwarfs and low-mass stars, although this is weaker than what's seen for giant planets. Two of these objects, TOI-1608 and TOI-2521, are believed to be in spin-orbit synchronization, causing their primary stars to rotate unusually quickly for their age. These systems offer insights into the evolution of stellar systems affected by tidal effects, especially those with brown dwarf and low-mass stellar companions.

Original language	English
Pages (from-to)	6162-6185
Number of pages	24
Journal	Monthly Notices of the Royal Astronomical Society
Volume	523
Issue number	4
DOIs	https://doi.org/10.1093/mnras/stad1745
State	Published - Aug 1 2023

ASJC Scopus Subject Areas

Astronomy and Astrophysics
Space and Planetary Science

Keywords

(stars:) brown dwarfs
stars: low mass
techniques: photometric
techniques: radial velocities

Access to Document

10.1093/mnras/stad1745

Cite this

Lin, Z., Gan, T., Wang, S. X., Shporer, A., Rabus, M., Zhou, G., Psaridi, A., Bouchy, F., Bieryla, A., Latham, D. W., Mao, S., Stassun, K. G., Hellier, C., Howell, S. B., Ziegler, C., Caldwell, D. A., Clark, C. A., Collins, K. A., Curtis, J. L., ... Yu, J. (2023). Three low-mass companions around aged stars discovered by TESS. Monthly Notices of the Royal Astronomical Society, 523(4), 6162-6185. https://doi.org/10.1093/mnras/stad1745

Lin, Z, Gan, T, Wang, SX, Shporer, A, Rabus, M, Zhou, G, Psaridi, A, Bouchy, F, Bieryla, A, Latham, DW, Mao, S, Stassun, KG, Hellier, C, Howell, SB, Ziegler, C, Caldwell, DA, Clark, CA, Collins, KA, Curtis, JL, Faherty, JK, Gnilka, CL, Grunblatt, SK, Jenkins, JM, Johnson, MC, Law, N, Lendl, M, Littlefield, C, Lund, MB, Lund, MN, Mann, AW, McDermott, S, Mishra, L, Mounzer, D, Paegert, M, Pritchard, T, Ricker, GR, Seager, S, Srdoc, G, Sun, Q, Tang, J, Udry, S, Vanderspek, R, Watanabe, D, Winn, JN & Yu, J 2023, 'Three low-mass companions around aged stars discovered by TESS', Monthly Notices of the Royal Astronomical Society, vol. 523, no. 4, pp. 6162-6185. https://doi.org/10.1093/mnras/stad1745

@article{7e7c52466d8d44d9bc687810e422b038,

title = "Three low-mass companions around aged stars discovered by TESS",

abstract = "Three low-mass celestial companions to older stars have been identified using data from the Transiting Exoplanet Survey Satellite (TESS). These include a brown dwarf (TOI-2336b) and two objects near the hydrogen burning mass limit (TOI-1608b and TOI-2521b). All of them appear to be inflated in size. There's a positive correlation between the flux and the radius for brown dwarfs and low-mass stars, although this is weaker than what's seen for giant planets. Two of these objects, TOI-1608 and TOI-2521, are believed to be in spin-orbit synchronization, causing their primary stars to rotate unusually quickly for their age. These systems offer insights into the evolution of stellar systems affected by tidal effects, especially those with brown dwarf and low-mass stellar companions.",

keywords = "(stars:) brown dwarfs, stars: low mass, techniques: photometric, techniques: radial velocities",

author = "Zitao Lin and Tianjun Gan and Wang, {Sharon X.} and Avi Shporer and Markus Rabus and George Zhou and Angelica Psaridi and Fran{\c c}ois Bouchy and Allyson Bieryla and Latham, {David W.} and Shude Mao and Stassun, {Keivan G.} and Coel Hellier and Howell, {Steve B.} and Carl Ziegler and Caldwell, {Douglas A.} and Clark, {Catherine A.} and Collins, {Karen A.} and Curtis, {Jason L.} and Faherty, {Jacqueline K.} and Gnilka, {Crystal L.} and Grunblatt, {Samuel K.} and Jenkins, {Jon M.} and Johnson, {Marshall C.} and Nicholas Law and Monika Lendl and Colin Littlefield and Lund, {Michael B.} and Lund, {Mikkel N.} and Mann, {Andrew W.} and Scott McDermott and Lokesh Mishra and Dany Mounzer and Martin Paegert and Tyler Pritchard and Ricker, {George R.} and Sara Seager and Gregor Srdoc and Qinghui Sun and Jiaxin Tang and Stephane Udry and Roland Vanderspek and David Watanabe and Winn, {Joshua N.} and Jie Yu",

note = "Funding Information: TG and SM acknowledge the support from the National Science Foundation of China (grant no. 12133005). We thank the Swiss National Science Foundation (SNSF) and the Geneva University for their continuous support to our planet search programmes. This work has been carried out within the framework of the NCCR PlanetS supported by the Swiss National Science Foundation under grants 51NF40_182901 and 51NF40_205606. ML acknowledges support of the Swiss National Science Foundation under grant number PCEFP2_194576. Funding Information: Funding for the TESS mission is provided by NASA{\textquoteright}s Science Mission Directorate. We acknowledge the use of public TESS data from pipelines at the TESS Science Office and at the TESS SPOC. This research has made use of the Exoplanet Follow-up Observation Program (ExoFOP; doi: 10.26134/ExoFOP5) website, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. This paper includes data collected by the TESS mission that are publicly available from the Mikulski Archive for Space Telescopes (MAST). This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Funding Information: This work has made use of data from the European Space Agency (ESA) mission Gaia ( https://www.cosmos.esa.int/gaia ), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium ). Funding for the DPAC has been provided by national institutions, in particular, the institutions participating in the Gaia Multilateral Agreement. Funding Information: This work makes use of observations from the LCOGT network. Part of the LCOGT telescope time was granted by NOIRLab through the Mid-Scale Innovations Program (MSIP). MSIP is funded by NSF. Resources supporting this work were provided by the NASA High-End Computing (HEC) Program through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center for the production of the SPOC data products. Publisher Copyright: {\textcopyright} 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.",

year = "2023",

month = aug,

day = "1",

doi = "10.1093/mnras/stad1745",

language = "English",

volume = "523",

pages = "6162--6185",

number = "4",

}

TY - JOUR

T1 - Three low-mass companions around aged stars discovered by TESS

AU - Lin, Zitao

AU - Gan, Tianjun

AU - Wang, Sharon X.

AU - Shporer, Avi

AU - Rabus, Markus

AU - Zhou, George

AU - Psaridi, Angelica

AU - Bouchy, François

AU - Bieryla, Allyson

AU - Latham, David W.

AU - Mao, Shude

AU - Stassun, Keivan G.

AU - Hellier, Coel

AU - Howell, Steve B.

AU - Ziegler, Carl

AU - Caldwell, Douglas A.

AU - Clark, Catherine A.

AU - Collins, Karen A.

AU - Curtis, Jason L.

AU - Faherty, Jacqueline K.

AU - Gnilka, Crystal L.

AU - Grunblatt, Samuel K.

AU - Jenkins, Jon M.

AU - Johnson, Marshall C.

AU - Law, Nicholas

AU - Lendl, Monika

AU - Littlefield, Colin

AU - Lund, Michael B.

AU - Lund, Mikkel N.

AU - Mann, Andrew W.

AU - McDermott, Scott

AU - Mishra, Lokesh

AU - Mounzer, Dany

AU - Paegert, Martin

AU - Pritchard, Tyler

AU - Ricker, George R.

AU - Seager, Sara

AU - Srdoc, Gregor

AU - Sun, Qinghui

AU - Tang, Jiaxin

AU - Udry, Stephane

AU - Vanderspek, Roland

AU - Watanabe, David

AU - Winn, Joshua N.

AU - Yu, Jie

N1 - Funding Information: TG and SM acknowledge the support from the National Science Foundation of China (grant no. 12133005). We thank the Swiss National Science Foundation (SNSF) and the Geneva University for their continuous support to our planet search programmes. This work has been carried out within the framework of the NCCR PlanetS supported by the Swiss National Science Foundation under grants 51NF40_182901 and 51NF40_205606. ML acknowledges support of the Swiss National Science Foundation under grant number PCEFP2_194576. Funding Information: Funding for the TESS mission is provided by NASA’s Science Mission Directorate. We acknowledge the use of public TESS data from pipelines at the TESS Science Office and at the TESS SPOC. This research has made use of the Exoplanet Follow-up Observation Program (ExoFOP; doi: 10.26134/ExoFOP5) website, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. This paper includes data collected by the TESS mission that are publicly available from the Mikulski Archive for Space Telescopes (MAST). This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Funding Information: This work has made use of data from the European Space Agency (ESA) mission Gaia ( https://www.cosmos.esa.int/gaia ), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium ). Funding for the DPAC has been provided by national institutions, in particular, the institutions participating in the Gaia Multilateral Agreement. Funding Information: This work makes use of observations from the LCOGT network. Part of the LCOGT telescope time was granted by NOIRLab through the Mid-Scale Innovations Program (MSIP). MSIP is funded by NSF. Resources supporting this work were provided by the NASA High-End Computing (HEC) Program through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center for the production of the SPOC data products. Publisher Copyright: © 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.

PY - 2023/8/1

Y1 - 2023/8/1

N2 - Three low-mass celestial companions to older stars have been identified using data from the Transiting Exoplanet Survey Satellite (TESS). These include a brown dwarf (TOI-2336b) and two objects near the hydrogen burning mass limit (TOI-1608b and TOI-2521b). All of them appear to be inflated in size. There's a positive correlation between the flux and the radius for brown dwarfs and low-mass stars, although this is weaker than what's seen for giant planets. Two of these objects, TOI-1608 and TOI-2521, are believed to be in spin-orbit synchronization, causing their primary stars to rotate unusually quickly for their age. These systems offer insights into the evolution of stellar systems affected by tidal effects, especially those with brown dwarf and low-mass stellar companions.

AB - Three low-mass celestial companions to older stars have been identified using data from the Transiting Exoplanet Survey Satellite (TESS). These include a brown dwarf (TOI-2336b) and two objects near the hydrogen burning mass limit (TOI-1608b and TOI-2521b). All of them appear to be inflated in size. There's a positive correlation between the flux and the radius for brown dwarfs and low-mass stars, although this is weaker than what's seen for giant planets. Two of these objects, TOI-1608 and TOI-2521, are believed to be in spin-orbit synchronization, causing their primary stars to rotate unusually quickly for their age. These systems offer insights into the evolution of stellar systems affected by tidal effects, especially those with brown dwarf and low-mass stellar companions.

KW - (stars:) brown dwarfs

KW - stars: low mass

KW - techniques: photometric

KW - techniques: radial velocities

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DO - 10.1093/mnras/stad1745

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VL - 523

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JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Three low-mass companions around aged stars discovered by TESS

Abstract

ASJC Scopus Subject Areas

Keywords

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