The magellan-tess survey. i. survey description and midsurvey results*

Johanna Teske; Sharon Xuesong Wang; Angie Wolfgang; Tianjun Gan; Mykhaylo Plotnykov; David J. Armstrong; R. Paul Butler; Bryson Cale; Jeffrey D. Crane; Ward Howard; Eric L.N. Jensen; Nicholas Law; Stephen A. Shectman; Peter Plavchan; Diana Valencia; Andrew Vanderburg; George R. Ricker; Roland Vanderspek; David W. Latham; Sara Seager; Joshua N. Winn; Jon M. Jenkins; Vardan Adibekyan; David Barrado; Susana C.C. Barros; Zouhair Benkhaldoun; David J.A. Brown; Edward M. Bryant; Jennifer Burt; Douglas A. Caldwell; David Charbonneau; Ryan Cloutier; Karen A. Collins; Kevin I. Collins; Knicole D. Colon; Dennis M. Conti; Olivier D.S. Demangeon; Jason D. Eastman; Mohammed Elmufti; Fabo Feng; Erin Flowers; Natalia M. Guerrero; Saeed Hojjatpanah; Jonathan M. Irwin; Giovanni Isopi; Jorge Lillo-Box; Franco Mallia; Bob Massey; Mayuko Mori; Susan E. Mullally; Norio Narita; Taku Nishiumi; Ares Osborn; Martin Paegert; Jerome Pitogo de Leon; Samuel N. Quinn; Michael Reefe; Richard P. Schwarz; Avi Shporer; Abderahmane Soubkiou; Sérgio G. Sousa; Chris Stockdale; Paul A. Strøm; Thiam Guan Tan; Jiaxin Tang; Peter Tenenbaum; Peter J. Wheatley; Justin Wittrock; Daniel A. Yahalomi; Farzaneh Zohrabi

doi:10.3847/1538-4365/ac0f0a

The magellan-tess survey. i. survey description and midsurvey results*

Johanna Teske, Sharon Xuesong Wang, Angie Wolfgang, Tianjun Gan, Mykhaylo Plotnykov, David J. Armstrong, R. Paul Butler, Bryson Cale, Jeffrey D. Crane, Ward Howard, Eric L.N. Jensen, Nicholas Law, Stephen A. Shectman, Peter Plavchan, Diana Valencia, Andrew Vanderburg, George R. Ricker, Roland Vanderspek, David W. Latham, Sara SeagerJoshua N. Winn, Jon M. Jenkins, Vardan Adibekyan, David Barrado, Susana C.C. Barros, Zouhair Benkhaldoun, David J.A. Brown, Edward M. Bryant, Jennifer Burt, Douglas A. Caldwell, David Charbonneau, Ryan Cloutier, Karen A. Collins, Kevin I. Collins, Knicole D. Colon, Dennis M. Conti, Olivier D.S. Demangeon, Jason D. Eastman, Mohammed Elmufti, Fabo Feng, Erin Flowers, Natalia M. Guerrero, Saeed Hojjatpanah, Jonathan M. Irwin, Giovanni Isopi, Jorge Lillo-Box, Franco Mallia, Bob Massey, Mayuko Mori, Susan E. Mullally, Norio Narita, Taku Nishiumi, Ares Osborn, Martin Paegert, Jerome Pitogo de Leon, Samuel N. Quinn, Michael Reefe, Richard P. Schwarz, Avi Shporer, Abderahmane Soubkiou, Sérgio G. Sousa, Chris Stockdale, Paul A. Strøm, Thiam Guan Tan, Jiaxin Tang, Peter Tenenbaum, Peter J. Wheatley, Justin Wittrock, Daniel A. Yahalomi, Farzaneh Zohrabi

Astrophysical Sciences

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Abstract

Kepler revealed that roughly one-third of Sunlike stars host planets orbiting within 100 days and between the size of Earth and Neptune. How do these planets form, what are they made of, and do they represent a continuous population or multiple populations? To help address these questions, we began the Magellan-TESS Survey (MTS), which uses Magellan II/PFS to obtain radial velocity (RV) masses of 30 TESS-detected exoplanets and develops an analysis framework that connects observed planet distributions to underlying populations. In the past, smallplanet RV measurements have been challenging to obtain due to host star faintness and low RV semiamplitudes and challenging to interpret due to the potential biases in target selection and observation planning decisions. The MTS attempts to minimize these biases by focusing on bright TESS targets and employing a quantitative selection function and observing strategy. In this paper, we (1) describe our motivation and survey strategy, (2) present our first catalog of planet density constraints for 27 TESS Objects of Interest (TOIs; 22 in our population analysis sample, 12 that are members of the same systems), and (3) employ a hierarchical Bayesian model to produce preliminary constraints on the mass-radius (M-R) relation. We find that the biases causing previous M-R relations to predict fairly high masses at 1 R have been reduced. This work can inform more detailed studies of individual systems and offer a framework that can be applied to future RV surveys with the goal of population inferences.

Original language	English (US)
Article number	33
Journal	Astrophysical Journal, Supplement Series
Volume	256
Issue number	2
DOIs	https://doi.org/10.3847/1538-4365/ac0f0a
State	Published - Oct 2021

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4365/ac0f0a

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Teske, J., Wang, S. X., Wolfgang, A., Gan, T., Plotnykov, M., Armstrong, D. J., Butler, R. P., Cale, B., Crane, J. D., Howard, W., Jensen, E. L. N., Law, N., Shectman, S. A., Plavchan, P., Valencia, D., Vanderburg, A., Ricker, G. R., Vanderspek, R., Latham, D. W., ... Zohrabi, F. (2021). The magellan-tess survey. i. survey description and midsurvey results*. Astrophysical Journal, Supplement Series, 256(2), Article 33. https://doi.org/10.3847/1538-4365/ac0f0a

@article{51ea819515504802a0fb3f09ea2691b3,

title = "The magellan-tess survey. i. survey description and midsurvey results*",

abstract = "Kepler revealed that roughly one-third of Sunlike stars host planets orbiting within 100 days and between the size of Earth and Neptune. How do these planets form, what are they made of, and do they represent a continuous population or multiple populations? To help address these questions, we began the Magellan-TESS Survey (MTS), which uses Magellan II/PFS to obtain radial velocity (RV) masses of 30 TESS-detected exoplanets and develops an analysis framework that connects observed planet distributions to underlying populations. In the past, smallplanet RV measurements have been challenging to obtain due to host star faintness and low RV semiamplitudes and challenging to interpret due to the potential biases in target selection and observation planning decisions. The MTS attempts to minimize these biases by focusing on bright TESS targets and employing a quantitative selection function and observing strategy. In this paper, we (1) describe our motivation and survey strategy, (2) present our first catalog of planet density constraints for 27 TESS Objects of Interest (TOIs; 22 in our population analysis sample, 12 that are members of the same systems), and (3) employ a hierarchical Bayesian model to produce preliminary constraints on the mass-radius (M-R) relation. We find that the biases causing previous M-R relations to predict fairly high masses at 1 R have been reduced. This work can inform more detailed studies of individual systems and offer a framework that can be applied to future RV surveys with the goal of population inferences.",

author = "Johanna Teske and Wang, {Sharon Xuesong} and Angie Wolfgang and Tianjun Gan and Mykhaylo Plotnykov and Armstrong, {David J.} and Butler, {R. Paul} and Bryson Cale and Crane, {Jeffrey D.} and Ward Howard and Jensen, {Eric L.N.} and Nicholas Law and Shectman, {Stephen A.} and Peter Plavchan and Diana Valencia and Andrew Vanderburg and Ricker, {George R.} and Roland Vanderspek and Latham, {David W.} and Sara Seager and Winn, {Joshua N.} and Jenkins, {Jon M.} and Vardan Adibekyan and David Barrado and Barros, {Susana C.C.} and Zouhair Benkhaldoun and Brown, {David J.A.} and Bryant, {Edward M.} and Jennifer Burt and Caldwell, {Douglas A.} and David Charbonneau and Ryan Cloutier and Collins, {Karen A.} and Collins, {Kevin I.} and Colon, {Knicole D.} and Conti, {Dennis M.} and Demangeon, {Olivier D.S.} and Eastman, {Jason D.} and Mohammed Elmufti and Fabo Feng and Erin Flowers and Guerrero, {Natalia M.} and Saeed Hojjatpanah and Irwin, {Jonathan M.} and Giovanni Isopi and Jorge Lillo-Box and Franco Mallia and Bob Massey and Mayuko Mori and Mullally, {Susan E.} and Norio Narita and Taku Nishiumi and Ares Osborn and Martin Paegert and {de Leon}, {Jerome Pitogo} and Quinn, {Samuel N.} and Michael Reefe and Schwarz, {Richard P.} and Avi Shporer and Abderahmane Soubkiou and Sousa, {S{\'e}rgio G.} and Chris Stockdale and Str{\o}m, {Paul A.} and Tan, {Thiam Guan} and Jiaxin Tang and Peter Tenenbaum and Wheatley, {Peter J.} and Justin Wittrock and Yahalomi, {Daniel A.} and Farzaneh Zohrabi",

note = "Publisher Copyright: {\textcopyright} 2021. The American Astronomical Society.",

year = "2021",

month = oct,

doi = "10.3847/1538-4365/ac0f0a",

language = "English (US)",

volume = "256",

journal = "Astrophysical Journal, Supplement Series",

issn = "0067-0049",

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Teske, J, Wang, SX, Wolfgang, A, Gan, T, Plotnykov, M, Armstrong, DJ, Butler, RP, Cale, B, Crane, JD, Howard, W, Jensen, ELN, Law, N, Shectman, SA, Plavchan, P, Valencia, D, Vanderburg, A, Ricker, GR, Vanderspek, R, Latham, DW, Seager, S, Winn, JN, Jenkins, JM, Adibekyan, V, Barrado, D, Barros, SCC, Benkhaldoun, Z, Brown, DJA, Bryant, EM, Burt, J, Caldwell, DA, Charbonneau, D, Cloutier, R, Collins, KA, Collins, KI, Colon, KD, Conti, DM, Demangeon, ODS, Eastman, JD, Elmufti, M, Feng, F, Flowers, E, Guerrero, NM, Hojjatpanah, S, Irwin, JM, Isopi, G, Lillo-Box, J, Mallia, F, Massey, B, Mori, M, Mullally, SE, Narita, N, Nishiumi, T, Osborn, A, Paegert, M, de Leon, JP, Quinn, SN, Reefe, M, Schwarz, RP, Shporer, A, Soubkiou, A, Sousa, SG, Stockdale, C, Strøm, PA, Tan, TG, Tang, J, Tenenbaum, P, Wheatley, PJ, Wittrock, J, Yahalomi, DA & Zohrabi, F 2021, 'The magellan-tess survey. i. survey description and midsurvey results*', Astrophysical Journal, Supplement Series, vol. 256, no. 2, 33. https://doi.org/10.3847/1538-4365/ac0f0a

TY - JOUR

T1 - The magellan-tess survey. i. survey description and midsurvey results*

AU - Teske, Johanna

AU - Wang, Sharon Xuesong

AU - Wolfgang, Angie

AU - Gan, Tianjun

AU - Plotnykov, Mykhaylo

AU - Armstrong, David J.

AU - Butler, R. Paul

AU - Cale, Bryson

AU - Crane, Jeffrey D.

AU - Howard, Ward

AU - Jensen, Eric L.N.

AU - Law, Nicholas

AU - Shectman, Stephen A.

AU - Plavchan, Peter

AU - Valencia, Diana

AU - Vanderburg, Andrew

AU - Ricker, George R.

AU - Vanderspek, Roland

AU - Latham, David W.

AU - Seager, Sara

AU - Winn, Joshua N.

AU - Jenkins, Jon M.

AU - Adibekyan, Vardan

AU - Barrado, David

AU - Barros, Susana C.C.

AU - Benkhaldoun, Zouhair

AU - Brown, David J.A.

AU - Bryant, Edward M.

AU - Burt, Jennifer

AU - Caldwell, Douglas A.

AU - Charbonneau, David

AU - Cloutier, Ryan

AU - Collins, Karen A.

AU - Collins, Kevin I.

AU - Colon, Knicole D.

AU - Conti, Dennis M.

AU - Demangeon, Olivier D.S.

AU - Eastman, Jason D.

AU - Elmufti, Mohammed

AU - Feng, Fabo

AU - Flowers, Erin

AU - Guerrero, Natalia M.

AU - Hojjatpanah, Saeed

AU - Irwin, Jonathan M.

AU - Isopi, Giovanni

AU - Lillo-Box, Jorge

AU - Mallia, Franco

AU - Massey, Bob

AU - Mori, Mayuko

AU - Mullally, Susan E.

AU - Narita, Norio

AU - Nishiumi, Taku

AU - Osborn, Ares

AU - Paegert, Martin

AU - de Leon, Jerome Pitogo

AU - Quinn, Samuel N.

AU - Reefe, Michael

AU - Schwarz, Richard P.

AU - Shporer, Avi

AU - Soubkiou, Abderahmane

AU - Sousa, Sérgio G.

AU - Stockdale, Chris

AU - Strøm, Paul A.

AU - Tan, Thiam Guan

AU - Tang, Jiaxin

AU - Tenenbaum, Peter

AU - Wheatley, Peter J.

AU - Wittrock, Justin

AU - Yahalomi, Daniel A.

AU - Zohrabi, Farzaneh

PY - 2021/10

Y1 - 2021/10

N2 - Kepler revealed that roughly one-third of Sunlike stars host planets orbiting within 100 days and between the size of Earth and Neptune. How do these planets form, what are they made of, and do they represent a continuous population or multiple populations? To help address these questions, we began the Magellan-TESS Survey (MTS), which uses Magellan II/PFS to obtain radial velocity (RV) masses of 30 TESS-detected exoplanets and develops an analysis framework that connects observed planet distributions to underlying populations. In the past, smallplanet RV measurements have been challenging to obtain due to host star faintness and low RV semiamplitudes and challenging to interpret due to the potential biases in target selection and observation planning decisions. The MTS attempts to minimize these biases by focusing on bright TESS targets and employing a quantitative selection function and observing strategy. In this paper, we (1) describe our motivation and survey strategy, (2) present our first catalog of planet density constraints for 27 TESS Objects of Interest (TOIs; 22 in our population analysis sample, 12 that are members of the same systems), and (3) employ a hierarchical Bayesian model to produce preliminary constraints on the mass-radius (M-R) relation. We find that the biases causing previous M-R relations to predict fairly high masses at 1 R have been reduced. This work can inform more detailed studies of individual systems and offer a framework that can be applied to future RV surveys with the goal of population inferences.

AB - Kepler revealed that roughly one-third of Sunlike stars host planets orbiting within 100 days and between the size of Earth and Neptune. How do these planets form, what are they made of, and do they represent a continuous population or multiple populations? To help address these questions, we began the Magellan-TESS Survey (MTS), which uses Magellan II/PFS to obtain radial velocity (RV) masses of 30 TESS-detected exoplanets and develops an analysis framework that connects observed planet distributions to underlying populations. In the past, smallplanet RV measurements have been challenging to obtain due to host star faintness and low RV semiamplitudes and challenging to interpret due to the potential biases in target selection and observation planning decisions. The MTS attempts to minimize these biases by focusing on bright TESS targets and employing a quantitative selection function and observing strategy. In this paper, we (1) describe our motivation and survey strategy, (2) present our first catalog of planet density constraints for 27 TESS Objects of Interest (TOIs; 22 in our population analysis sample, 12 that are members of the same systems), and (3) employ a hierarchical Bayesian model to produce preliminary constraints on the mass-radius (M-R) relation. We find that the biases causing previous M-R relations to predict fairly high masses at 1 R have been reduced. This work can inform more detailed studies of individual systems and offer a framework that can be applied to future RV surveys with the goal of population inferences.

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VL - 256

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

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M1 - 33

ER -

The magellan-tess survey. i. survey description and midsurvey results*

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