Investigation of a transiting planet candidate in Trumpler 37: An astro-physical false positive eclipsing spectroscopic binary star

R. Errmann; G. Torres; T. O.B. Schmidt; M. Seeliger; A. W. Howard; G. Maciejewski; R. Neuhäuser; S. Meibom; A. Kellerer; D. P. Dimitrov; B. Dincel; C. Marka; M. Mugrauer; Ch Ginski; Ch Adam; St Raetz; J. G. Schmidt; M. M. Hohle; A. Berndt; M. Kitze; L. Trepl; M. Moualla; T. Eisenbeiß; S. Fiedler; A. Dathe; Ch Graefe; N. Pawellek; K. Schreyer; D. P. Kjurkchieva; V. S. Radeva; V. Yotov; W. P. Chen; S. C.L. Hu; Z. Y. Wu; X. Zhou; T. Pribulla; J. Budaj; M. Vaňko; E. Kundra; Ľ Hambälek; V. Krushevska; L. Bukowiecki; G. Nowak; L. Marschall; H. Terada; D. Tomono; M. Fernandez; A. Sota; H. Takahashi; Y. Oasa; C. Briceño; R. Chini; C. H. Broeg

doi:10.1002/asna.201412047

Investigation of a transiting planet candidate in Trumpler 37: An astro-physical false positive eclipsing spectroscopic binary star

R. Errmann^*, G. Torres, T. O.B. Schmidt, M. Seeliger, A. W. Howard, G. Maciejewski, R. Neuhäuser, S. Meibom, A. Kellerer, D. P. Dimitrov, B. Dincel, C. Marka, M. Mugrauer, Ch Ginski, Ch Adam, St Raetz, J. G. Schmidt, M. M. Hohle, A. Berndt, M. KitzeL. Trepl, M. Moualla, T. Eisenbeiß, S. Fiedler, A. Dathe, Ch Graefe, N. Pawellek, K. Schreyer, D. P. Kjurkchieva, V. S. Radeva, V. Yotov, W. P. Chen, S. C.L. Hu, Z. Y. Wu, X. Zhou, T. Pribulla, J. Budaj, M. Vaňko, E. Kundra, Ľ Hambälek, V. Krushevska, L. Bukowiecki, G. Nowak, L. Marschall, H. Terada, D. Tomono, M. Fernandez, A. Sota, H. Takahashi, Y. Oasa, C. Briceño, R. Chini, C. H. Broeg

^*Corresponding author for this work

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

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Abstract

We report our investigation of the first transiting planet candidate from the YETI project in the young (∼4 Myr old) open cluster Trumpler 37. The transit-like signal detected in the lightcurve of F8V star 2M21385603+5711345 repeats every 1.364894 + 0.000015 days, and has a depth of 54.5 + 0.8 mmag in R. Membership in the cluster is supported by its mean radial velocity and location in the color-magnitude diagram, while the Li diagnostic and proper motion are inconclusive in this regard. Follow-up photometric monitoring and adaptive optics imaging allow us to rule out many possible blend scenarios, but our radial-velocity measurements show it to be an eclipsing single-lined spectroscopic binary with a late-type (mid-M) stellar companion, rather than one of planetary nature. The estimated mass of the companion is 0.15-0.44 M⊙. The search for planets around very young stars such as those targeted by the YETI survey remains of critical importance to understand the early stages of planet formation and evolution.

Original language	English
Pages (from-to)	345-356
Number of pages	12
Journal	Astronomische Nachrichten
Volume	335
Issue number	4
DOIs	https://doi.org/10.1002/asna.201412047
Publication status	Published - May 2014

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Errmann, R., Torres, G., Schmidt, T. O. B., Seeliger, M., Howard, A. W., Maciejewski, G., Neuhäuser, R., Meibom, S., Kellerer, A., Dimitrov, D. P., Dincel, B., Marka, C., Mugrauer, M., Ginski, C., Adam, C., Raetz, S., Schmidt, J. G., Hohle, M. M., Berndt, A., ... Broeg, C. H. (2014). Investigation of a transiting planet candidate in Trumpler 37: An astro-physical false positive eclipsing spectroscopic binary star. Astronomische Nachrichten, 335(4), 345-356. https://doi.org/10.1002/asna.201412047

@article{536441cf914b49b895d376a6db51cd1b,

title = "Investigation of a transiting planet candidate in Trumpler 37: An astro-physical false positive eclipsing spectroscopic binary star",

abstract = "We report our investigation of the first transiting planet candidate from the YETI project in the young (∼4 Myr old) open cluster Trumpler 37. The transit-like signal detected in the lightcurve of F8V star 2M21385603+5711345 repeats every 1.364894 + 0.000015 days, and has a depth of 54.5 + 0.8 mmag in R. Membership in the cluster is supported by its mean radial velocity and location in the color-magnitude diagram, while the Li diagnostic and proper motion are inconclusive in this regard. Follow-up photometric monitoring and adaptive optics imaging allow us to rule out many possible blend scenarios, but our radial-velocity measurements show it to be an eclipsing single-lined spectroscopic binary with a late-type (mid-M) stellar companion, rather than one of planetary nature. The estimated mass of the companion is 0.15-0.44 M⊙. The search for planets around very young stars such as those targeted by the YETI survey remains of critical importance to understand the early stages of planet formation and evolution.",

keywords = "Binaries: eclipsing, Binaries: spectroscopic, Open clusters and associations: individual (Trumpler 37), Planetary systems, Stars: fundamental parameters, Stars: late-type",

author = "R. Errmann and G. Torres and Schmidt, {T. O.B.} and M. Seeliger and Howard, {A. W.} and G. Maciejewski and R. Neuh{\"a}user and S. Meibom and A. Kellerer and Dimitrov, {D. P.} and B. Dincel and C. Marka and M. Mugrauer and Ch Ginski and Ch Adam and St Raetz and Schmidt, {J. G.} and Hohle, {M. M.} and A. Berndt and M. Kitze and L. Trepl and M. Moualla and T. Eisenbei{\ss} and S. Fiedler and A. Dathe and Ch Graefe and N. Pawellek and K. Schreyer and Kjurkchieva, {D. P.} and Radeva, {V. S.} and V. Yotov and Chen, {W. P.} and Hu, {S. C.L.} and Wu, {Z. Y.} and X. Zhou and T. Pribulla and J. Budaj and M. Va{\v n}ko and E. Kundra and {\v L} Hamb{\"a}lek and V. Krushevska and L. Bukowiecki and G. Nowak and L. Marschall and H. Terada and D. Tomono and M. Fernandez and A. Sota and H. Takahashi and Y. Oasa and C. Brice{\~n}o and R. Chini and Broeg, {C. H.}",

year = "2014",

month = may,

doi = "10.1002/asna.201412047",

language = "English",

volume = "335",

pages = "345--356",

journal = "Astronomische Nachrichten",

issn = "0004-6337",

publisher = "Wiley-VCH Verlag GmbH",

number = "4",

}

Errmann, R, Torres, G, Schmidt, TOB, Seeliger, M, Howard, AW, Maciejewski, G, Neuhäuser, R, Meibom, S, Kellerer, A, Dimitrov, DP, Dincel, B, Marka, C, Mugrauer, M, Ginski, C, Adam, C, Raetz, S, Schmidt, JG, Hohle, MM, Berndt, A, Kitze, M, Trepl, L, Moualla, M, Eisenbeiß, T, Fiedler, S, Dathe, A, Graefe, C, Pawellek, N, Schreyer, K, Kjurkchieva, DP, Radeva, VS, Yotov, V, Chen, WP, Hu, SCL, Wu, ZY, Zhou, X, Pribulla, T, Budaj, J, Vaňko, M, Kundra, E, Hambälek, Ľ, Krushevska, V, Bukowiecki, L, Nowak, G, Marschall, L, Terada, H, Tomono, D, Fernandez, M, Sota, A, Takahashi, H, Oasa, Y, Briceño, C, Chini, R & Broeg, CH 2014, 'Investigation of a transiting planet candidate in Trumpler 37: An astro-physical false positive eclipsing spectroscopic binary star', Astronomische Nachrichten, vol. 335, no. 4, pp. 345-356. https://doi.org/10.1002/asna.201412047

TY - JOUR

T1 - Investigation of a transiting planet candidate in Trumpler 37

T2 - An astro-physical false positive eclipsing spectroscopic binary star

AU - Errmann, R.

AU - Torres, G.

AU - Schmidt, T. O.B.

AU - Seeliger, M.

AU - Howard, A. W.

AU - Maciejewski, G.

AU - Neuhäuser, R.

AU - Meibom, S.

AU - Kellerer, A.

AU - Dimitrov, D. P.

AU - Dincel, B.

AU - Marka, C.

AU - Mugrauer, M.

AU - Ginski, Ch

AU - Adam, Ch

AU - Raetz, St

AU - Schmidt, J. G.

AU - Hohle, M. M.

AU - Berndt, A.

AU - Kitze, M.

AU - Trepl, L.

AU - Moualla, M.

AU - Eisenbeiß, T.

AU - Fiedler, S.

AU - Dathe, A.

AU - Graefe, Ch

AU - Pawellek, N.

AU - Schreyer, K.

AU - Kjurkchieva, D. P.

AU - Radeva, V. S.

AU - Yotov, V.

AU - Chen, W. P.

AU - Hu, S. C.L.

AU - Wu, Z. Y.

AU - Zhou, X.

AU - Pribulla, T.

AU - Budaj, J.

AU - Vaňko, M.

AU - Kundra, E.

AU - Hambälek, Ľ

AU - Krushevska, V.

AU - Bukowiecki, L.

AU - Nowak, G.

AU - Marschall, L.

AU - Terada, H.

AU - Tomono, D.

AU - Fernandez, M.

AU - Sota, A.

AU - Takahashi, H.

AU - Oasa, Y.

AU - Briceño, C.

AU - Chini, R.

AU - Broeg, C. H.

PY - 2014/5

Y1 - 2014/5

N2 - We report our investigation of the first transiting planet candidate from the YETI project in the young (∼4 Myr old) open cluster Trumpler 37. The transit-like signal detected in the lightcurve of F8V star 2M21385603+5711345 repeats every 1.364894 + 0.000015 days, and has a depth of 54.5 + 0.8 mmag in R. Membership in the cluster is supported by its mean radial velocity and location in the color-magnitude diagram, while the Li diagnostic and proper motion are inconclusive in this regard. Follow-up photometric monitoring and adaptive optics imaging allow us to rule out many possible blend scenarios, but our radial-velocity measurements show it to be an eclipsing single-lined spectroscopic binary with a late-type (mid-M) stellar companion, rather than one of planetary nature. The estimated mass of the companion is 0.15-0.44 M⊙. The search for planets around very young stars such as those targeted by the YETI survey remains of critical importance to understand the early stages of planet formation and evolution.

AB - We report our investigation of the first transiting planet candidate from the YETI project in the young (∼4 Myr old) open cluster Trumpler 37. The transit-like signal detected in the lightcurve of F8V star 2M21385603+5711345 repeats every 1.364894 + 0.000015 days, and has a depth of 54.5 + 0.8 mmag in R. Membership in the cluster is supported by its mean radial velocity and location in the color-magnitude diagram, while the Li diagnostic and proper motion are inconclusive in this regard. Follow-up photometric monitoring and adaptive optics imaging allow us to rule out many possible blend scenarios, but our radial-velocity measurements show it to be an eclipsing single-lined spectroscopic binary with a late-type (mid-M) stellar companion, rather than one of planetary nature. The estimated mass of the companion is 0.15-0.44 M⊙. The search for planets around very young stars such as those targeted by the YETI survey remains of critical importance to understand the early stages of planet formation and evolution.

KW - Binaries: eclipsing

KW - Binaries: spectroscopic

KW - Open clusters and associations: individual (Trumpler 37)

KW - Planetary systems

KW - Stars: fundamental parameters

KW - Stars: late-type

UR - http://www.scopus.com/inward/record.url?scp=84899710220&partnerID=8YFLogxK

U2 - 10.1002/asna.201412047

DO - 10.1002/asna.201412047

M3 - Article

SN - 0004-6337

VL - 335

SP - 345

EP - 356

JO - Astronomische Nachrichten

JF - Astronomische Nachrichten

IS - 4

ER -

Investigation of a transiting planet candidate in Trumpler 37: An astro-physical false positive eclipsing spectroscopic binary star

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