Marvels-1b: A short-period, brown dwarf desert candidate from the sdss-iii MARVELS planet search

Brian L. Lee; Jian Ge; Scott W. Fleming; Keivan G. Stassun; B. Scott Gaudi; Rory Barnes; Suvrath Mahadevan; Jason D. Eastman; Jason Wright; Robert J. Siverd; Bruce Gary; Luan Ghezzi; Chris Laws; John P. Wisniewski; G. F.Porto De Mello; Ricardo L.C. Ogando; Marcio A.G. Maia; Luiz Nicolaci Da Costa; Thirupathi Sivarani; Joshua Pepper; Duy Cuong Nguyen; Leslie Hebb; Nathan De Lee; Ji Wang; Xiaoke Wan; Bo Zhao; Liang Chang; John Groot; Frank Varosi; Fred Hearty; Kevin Hanna; J. C. Van Eyken; Stephen R. Kane; Eric Agol; Dmitry Bizyaev; John J. Bochanski; Howard Brewington; Zhiping Chen; Erin Costello; Liming Dou; Daniel J. Eisenstein; Adam Fletcher; Eric B. Ford; Pengcheng Guo; Jon A. Holtzman; Peng Jiang; R. French Leger; Jian Liu; Daniel C. Long; Elena Malanushenko; Viktor Malanushenko; Mohit Malik; Daniel Oravetz; Kaike Pan; Pais Rohan; Donald P. Schneider; Alaina Shelden; Stephanie A. Snedden; Audrey Simmons; B. A. Weaver; David H. Weinberg; Ji Wei Xie

doi:10.1088/0004-637X/728/1/32

Marvels-1b: A short-period, brown dwarf desert candidate from the sdss-iii MARVELS planet search

Brian L. Lee, Jian Ge, Scott W. Fleming, Keivan G. Stassun, B. Scott Gaudi, Rory Barnes, Suvrath Mahadevan, Jason D. Eastman, Jason Wright, Robert J. Siverd, Bruce Gary, Luan Ghezzi, Chris Laws, John P. Wisniewski, G. F.Porto De Mello, Ricardo L.C. Ogando, Marcio A.G. Maia, Luiz Nicolaci Da Costa, Thirupathi Sivarani, Joshua PepperDuy Cuong Nguyen, Leslie Hebb, Nathan De Lee, Ji Wang, Xiaoke Wan, Bo Zhao, Liang Chang, John Groot, Frank Varosi, Fred Hearty, Kevin Hanna, J. C. Van Eyken, Stephen R. Kane, Eric Agol, Dmitry Bizyaev, John J. Bochanski, Howard Brewington, Zhiping Chen, Erin Costello, Liming Dou, Daniel J. Eisenstein, Adam Fletcher, Eric B. Ford, Pengcheng Guo, Jon A. Holtzman, Peng Jiang, R. French Leger, Jian Liu, Daniel C. Long, Elena Malanushenko, Viktor Malanushenko, Mohit Malik, Daniel Oravetz, Kaike Pan, Pais Rohan, Donald P. Schneider, Alaina Shelden, Stephanie A. Snedden, Audrey Simmons, B. A. Weaver, David H. Weinberg, Ji Wei Xie

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Abstract

We present a new short-period brown dwarf (BD) candidate around the star TYC 1240-00945-1. This candidate was discovered in the first year of the Multi-object APO Radial Velocity Exoplanets Large-area Survey (MARVELS), which is part of the Sloan Digital Sky Survey (SDSS) III, and we designate the BD as MARVELS-1b. MARVELS uses the technique of dispersed fixed-delay interferometery to simultaneously obtain radial velocity (RV) measurements for 60 objects per field using a single, custom-built instrument that is fiber fed from the SDSS 2.5 m telescope. From our 20 RV measurements spread over a ∼370 day time baseline, we derive a Keplerian orbital fit with semi-amplitude K = 2.533 ± 0.025 km s-1, period P = 5.8953 ± 0.0004 days, and eccentricity consistent with circular. Independent follow-up RV data confirm the orbit. Adopting a mass of 1.37 ± 0.11 M_⊙ for the slightly evolved F9 host star, we infer that the companion has a minimum mass of 28.0 ± 1.5 M_Jup, a semimajor axis 0.071 ± 0.002 AU assuming an edge-on orbit, and is probably tidally synchronized. We find no evidence for coherent intrinsic variability of the host star at the period of the companion at levels greater than a few millimagnitudes. The companion has an a priori transit probability of ∼14%. Although we find no evidence for transits, we cannot definitively rule them out for companion radii ≲1 R_Jup.

Original language	English (US)
Journal	Astrophysical Journal
Volume	728
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/728/1/32
State	Published - Feb 10 2011

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/728/1/32

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Lee, B. L., Ge, J., Fleming, S. W., Stassun, K. G., Gaudi, B. S., Barnes, R., Mahadevan, S., Eastman, J. D., Wright, J., Siverd, R. J., Gary, B., Ghezzi, L., Laws, C., Wisniewski, J. P., De Mello, G. F. P., Ogando, R. L. C., Maia, M. A. G., Da Costa, L. N., Sivarani, T., ... Xie, J. W. (2011). Marvels-1b: A short-period, brown dwarf desert candidate from the sdss-iii MARVELS planet search. Astrophysical Journal, 728(1). https://doi.org/10.1088/0004-637X/728/1/32

@article{07d4032d6d3c4a5c8d98176d4627fafc,

title = "Marvels-1b: A short-period, brown dwarf desert candidate from the sdss-iii MARVELS planet search",

abstract = "We present a new short-period brown dwarf (BD) candidate around the star TYC 1240-00945-1. This candidate was discovered in the first year of the Multi-object APO Radial Velocity Exoplanets Large-area Survey (MARVELS), which is part of the Sloan Digital Sky Survey (SDSS) III, and we designate the BD as MARVELS-1b. MARVELS uses the technique of dispersed fixed-delay interferometery to simultaneously obtain radial velocity (RV) measurements for 60 objects per field using a single, custom-built instrument that is fiber fed from the SDSS 2.5 m telescope. From our 20 RV measurements spread over a ∼370 day time baseline, we derive a Keplerian orbital fit with semi-amplitude K = 2.533 ± 0.025 km s-1, period P = 5.8953 ± 0.0004 days, and eccentricity consistent with circular. Independent follow-up RV data confirm the orbit. Adopting a mass of 1.37 ± 0.11 M⊙ for the slightly evolved F9 host star, we infer that the companion has a minimum mass of 28.0 ± 1.5 MJup, a semimajor axis 0.071 ± 0.002 AU assuming an edge-on orbit, and is probably tidally synchronized. We find no evidence for coherent intrinsic variability of the host star at the period of the companion at levels greater than a few millimagnitudes. The companion has an a priori transit probability of ∼14%. Although we find no evidence for transits, we cannot definitively rule them out for companion radii ≲1 RJup.",

author = "Lee, {Brian L.} and Jian Ge and Fleming, {Scott W.} and Stassun, {Keivan G.} and Gaudi, {B. Scott} and Rory Barnes and Suvrath Mahadevan and Eastman, {Jason D.} and Jason Wright and Siverd, {Robert J.} and Bruce Gary and Luan Ghezzi and Chris Laws and Wisniewski, {John P.} and {De Mello}, {G. F.Porto} and Ogando, {Ricardo L.C.} and Maia, {Marcio A.G.} and {Da Costa}, {Luiz Nicolaci} and Thirupathi Sivarani and Joshua Pepper and Nguyen, {Duy Cuong} and Leslie Hebb and {De Lee}, Nathan and Ji Wang and Xiaoke Wan and Bo Zhao and Liang Chang and John Groot and Frank Varosi and Fred Hearty and Kevin Hanna and {Van Eyken}, {J. C.} and Kane, {Stephen R.} and Eric Agol and Dmitry Bizyaev and Bochanski, {John J.} and Howard Brewington and Zhiping Chen and Erin Costello and Liming Dou and Eisenstein, {Daniel J.} and Adam Fletcher and Ford, {Eric B.} and Pengcheng Guo and Holtzman, {Jon A.} and Peng Jiang and Leger, {R. French} and Jian Liu and Long, {Daniel C.} and Elena Malanushenko and Viktor Malanushenko and Mohit Malik and Daniel Oravetz and Kaike Pan and Pais Rohan and Schneider, {Donald P.} and Alaina Shelden and Snedden, {Stephanie A.} and Audrey Simmons and Weaver, {B. A.} and Weinberg, {David H.} and Xie, {Ji Wei}",

year = "2011",

month = feb,

day = "10",

doi = "10.1088/0004-637X/728/1/32",

language = "English (US)",

volume = "728",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1",

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Lee, BL, Ge, J, Fleming, SW, Stassun, KG, Gaudi, BS, Barnes, R, Mahadevan, S, Eastman, JD, Wright, J, Siverd, RJ, Gary, B, Ghezzi, L, Laws, C, Wisniewski, JP, De Mello, GFP, Ogando, RLC, Maia, MAG, Da Costa, LN, Sivarani, T, Pepper, J, Nguyen, DC, Hebb, L, De Lee, N, Wang, J, Wan, X, Zhao, B, Chang, L, Groot, J, Varosi, F, Hearty, F, Hanna, K, Van Eyken, JC, Kane, SR, Agol, E, Bizyaev, D, Bochanski, JJ, Brewington, H, Chen, Z, Costello, E, Dou, L, Eisenstein, DJ, Fletcher, A, Ford, EB, Guo, P, Holtzman, JA, Jiang, P, Leger, RF, Liu, J, Long, DC, Malanushenko, E, Malanushenko, V, Malik, M, Oravetz, D, Pan, K, Rohan, P, Schneider, DP, Shelden, A, Snedden, SA, Simmons, A, Weaver, BA, Weinberg, DH & Xie, JW 2011, 'Marvels-1b: A short-period, brown dwarf desert candidate from the sdss-iii MARVELS planet search', Astrophysical Journal, vol. 728, no. 1. https://doi.org/10.1088/0004-637X/728/1/32

TY - JOUR

T1 - Marvels-1b

T2 - A short-period, brown dwarf desert candidate from the sdss-iii MARVELS planet search

AU - Lee, Brian L.

AU - Ge, Jian

AU - Fleming, Scott W.

AU - Stassun, Keivan G.

AU - Gaudi, B. Scott

AU - Barnes, Rory

AU - Mahadevan, Suvrath

AU - Eastman, Jason D.

AU - Wright, Jason

AU - Siverd, Robert J.

AU - Gary, Bruce

AU - Ghezzi, Luan

AU - Laws, Chris

AU - Wisniewski, John P.

AU - De Mello, G. F.Porto

AU - Ogando, Ricardo L.C.

AU - Maia, Marcio A.G.

AU - Da Costa, Luiz Nicolaci

AU - Sivarani, Thirupathi

AU - Pepper, Joshua

AU - Nguyen, Duy Cuong

AU - Hebb, Leslie

AU - De Lee, Nathan

AU - Wang, Ji

AU - Wan, Xiaoke

AU - Zhao, Bo

AU - Chang, Liang

AU - Groot, John

AU - Varosi, Frank

AU - Hearty, Fred

AU - Hanna, Kevin

AU - Van Eyken, J. C.

AU - Kane, Stephen R.

AU - Agol, Eric

AU - Bizyaev, Dmitry

AU - Bochanski, John J.

AU - Brewington, Howard

AU - Chen, Zhiping

AU - Costello, Erin

AU - Dou, Liming

AU - Eisenstein, Daniel J.

AU - Fletcher, Adam

AU - Ford, Eric B.

AU - Guo, Pengcheng

AU - Holtzman, Jon A.

AU - Jiang, Peng

AU - Leger, R. French

AU - Liu, Jian

AU - Long, Daniel C.

AU - Malanushenko, Elena

AU - Malanushenko, Viktor

AU - Malik, Mohit

AU - Oravetz, Daniel

AU - Pan, Kaike

AU - Rohan, Pais

AU - Schneider, Donald P.

AU - Shelden, Alaina

AU - Snedden, Stephanie A.

AU - Simmons, Audrey

AU - Weaver, B. A.

AU - Weinberg, David H.

AU - Xie, Ji Wei

PY - 2011/2/10

Y1 - 2011/2/10

N2 - We present a new short-period brown dwarf (BD) candidate around the star TYC 1240-00945-1. This candidate was discovered in the first year of the Multi-object APO Radial Velocity Exoplanets Large-area Survey (MARVELS), which is part of the Sloan Digital Sky Survey (SDSS) III, and we designate the BD as MARVELS-1b. MARVELS uses the technique of dispersed fixed-delay interferometery to simultaneously obtain radial velocity (RV) measurements for 60 objects per field using a single, custom-built instrument that is fiber fed from the SDSS 2.5 m telescope. From our 20 RV measurements spread over a ∼370 day time baseline, we derive a Keplerian orbital fit with semi-amplitude K = 2.533 ± 0.025 km s-1, period P = 5.8953 ± 0.0004 days, and eccentricity consistent with circular. Independent follow-up RV data confirm the orbit. Adopting a mass of 1.37 ± 0.11 M⊙ for the slightly evolved F9 host star, we infer that the companion has a minimum mass of 28.0 ± 1.5 MJup, a semimajor axis 0.071 ± 0.002 AU assuming an edge-on orbit, and is probably tidally synchronized. We find no evidence for coherent intrinsic variability of the host star at the period of the companion at levels greater than a few millimagnitudes. The companion has an a priori transit probability of ∼14%. Although we find no evidence for transits, we cannot definitively rule them out for companion radii ≲1 RJup.

AB - We present a new short-period brown dwarf (BD) candidate around the star TYC 1240-00945-1. This candidate was discovered in the first year of the Multi-object APO Radial Velocity Exoplanets Large-area Survey (MARVELS), which is part of the Sloan Digital Sky Survey (SDSS) III, and we designate the BD as MARVELS-1b. MARVELS uses the technique of dispersed fixed-delay interferometery to simultaneously obtain radial velocity (RV) measurements for 60 objects per field using a single, custom-built instrument that is fiber fed from the SDSS 2.5 m telescope. From our 20 RV measurements spread over a ∼370 day time baseline, we derive a Keplerian orbital fit with semi-amplitude K = 2.533 ± 0.025 km s-1, period P = 5.8953 ± 0.0004 days, and eccentricity consistent with circular. Independent follow-up RV data confirm the orbit. Adopting a mass of 1.37 ± 0.11 M⊙ for the slightly evolved F9 host star, we infer that the companion has a minimum mass of 28.0 ± 1.5 MJup, a semimajor axis 0.071 ± 0.002 AU assuming an edge-on orbit, and is probably tidally synchronized. We find no evidence for coherent intrinsic variability of the host star at the period of the companion at levels greater than a few millimagnitudes. The companion has an a priori transit probability of ∼14%. Although we find no evidence for transits, we cannot definitively rule them out for companion radii ≲1 RJup.

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UR - http://www.scopus.com/inward/citedby.url?scp=84891215688&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/728/1/32

DO - 10.1088/0004-637X/728/1/32

M3 - Article

AN - SCOPUS:84891215688

SN - 0004-637X

VL - 728

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

ER -

Marvels-1b: A short-period, brown dwarf desert candidate from the sdss-iii MARVELS planet search

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