Standard

A new type of Ambiguity in the Planet and Binary Interpretations of Central Perturbations of High-magnification Gravitational Microlensing Events. / Choi, J.-Y; Shin, I.-G; Han, C.; Udalski, A.; Sumi, T.; Gould, A.; Bozza, V.; Dominik, M.; Fouque´, P.; Horne, K.; Szyman´ski, M. K.; Kubiak, M.; Soszyn´ski, I.; Pietrzyn´ski, G.; Poleski, R.; Ulaczyk, K.; Pietrukowicz, P.; Kozłowski, S.; Skowron, J.; Wyrzykowski, Ł.; OGLE Collaboration; Abe, F.; Bennett, D. P.; Bond, I. A.; Botzler, C. S.; Chote, P.; Freeman, M.; Fukui, A.; Furusawa, K.; Itow, Y.; Kobara, S.; Ling, C. H.; Masuda, K.; Matsubara, Y.; Miyake, N.; Muraki, Y.; Ohmori, K.; Ohnishi, K.; Rattenbury, N. J.; Saito, To; Sullivan, D. J.; Suzuki, D.; Suzuki, K.; Sweatman, W. L.; Takino, S.; Tristram, P. J.; Wada, K.; Yock, P. C. M.; MOA Collaboration; Bramich, D. M.; Snodgrass, C.; Steele, I. A.; Street, R. A.; Tsapras, Y.; RoboNet Collaboration; Alsubai, K. A.; Browne, P.; Burgdorf, M. J.; Calchi Novati, S.; Dodds, P.; Dreizler, S.; Fang, X.-S; Grundahl, F.; Gu, C.-H; Hardis, S.; Harpsøe, K.; Hinse, T. C.; Hornstrup, Allan; Hundertmark, M.; Jessen-Hansen, J.; Jørgensen, U. G.; Kains, N.; Kerins, E.; Liebig, C.; Lund, M.; Lunkkvist, M.; Mancini, L.; Mathiasen, M.; Penny, M. T.; Rahvar, S.; Ricci, D.; Scarpetta, G.; Skottfelt, J.; Southworth, J.; Surdej, J.; Tregloan-Reed, J.; Wambsganss, J.; Wertz, O.; Almeida, L. A.; Batista, V.; Christie, G.; DePoy, D. L.; Dong, Subo; Gaudi, B. S.; Henderson, C.; Jablonski, F.; Lee, C.-U; McCormick, J.; McGregor, D.; Moorhouse, D.; Natusch, T.; Ngan, H.; Pogge, R. W.; Tan, T.-G; Thornley, G.; Yee, J. C.; Albrow, M. D.; Bachelet, E.; Beaulieu, J.-P; Brillant, S.; Cassan, A.; Cole, A. A.; Corrales, E.; Coutures, C.; Dieters, S.; Dominis Prester, D.; Donatowicz, J.; Greenhill, J.; Kubas, D.; Marquette, J.-B; Menzies, J. W.; Sahu, K. C.; Zub, M.

In: Astrophysical Journal, Vol. 756, No. 1, 2012, p. 48.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Harvard

Choi, J-Y, Shin, I-G, Han, C, Udalski, A, Sumi, T, Gould, A, Bozza, V, Dominik, M, Fouque´, P, Horne, K, Szyman´ski, MK, Kubiak, M, Soszyn´ski, I, Pietrzyn´ski, G, Poleski, R, Ulaczyk, K, Pietrukowicz, P, Kozłowski, S, Skowron, J, Wyrzykowski, Ł, OGLE Collaboration, Abe, F, Bennett, DP, Bond, IA, Botzler, CS, Chote, P, Freeman, M, Fukui, A, Furusawa, K, Itow, Y, Kobara, S, Ling, CH, Masuda, K, Matsubara, Y, Miyake, N, Muraki, Y, Ohmori, K, Ohnishi, K, Rattenbury, NJ, Saito, T, Sullivan, DJ, Suzuki, D, Suzuki, K, Sweatman, WL, Takino, S, Tristram, PJ, Wada, K, Yock, PCM, MOA Collaboration, Bramich, DM, Snodgrass, C, Steele, IA, Street, RA, Tsapras, Y, RoboNet Collaboration, Alsubai, KA, Browne, P, Burgdorf, MJ, Calchi Novati, S, Dodds, P, Dreizler, S, Fang, X-S, Grundahl, F, Gu, C-H, Hardis, S, Harpsøe, K, Hinse, TC, Hornstrup, A, Hundertmark, M, Jessen-Hansen, J, Jørgensen, UG, Kains, N, Kerins, E, Liebig, C, Lund, M, Lunkkvist, M, Mancini, L, Mathiasen, M, Penny, MT, Rahvar, S, Ricci, D, Scarpetta, G, Skottfelt, J, Southworth, J, Surdej, J, Tregloan-Reed, J, Wambsganss, J, Wertz, O, Almeida, LA, Batista, V, Christie, G, DePoy, DL, Dong, S, Gaudi, BS, Henderson, C, Jablonski, F, Lee, C-U, McCormick, J, McGregor, D, Moorhouse, D, Natusch, T, Ngan, H, Pogge, RW, Tan, T-G, Thornley, G, Yee, JC, Albrow, MD, Bachelet, E, Beaulieu, J-P, Brillant, S, Cassan, A, Cole, AA, Corrales, E, Coutures, C, Dieters, S, Dominis Prester, D, Donatowicz, J, Greenhill, J, Kubas, D, Marquette, J-B, Menzies, JW, Sahu, KC & Zub, M 2012, 'A new type of Ambiguity in the Planet and Binary Interpretations of Central Perturbations of High-magnification Gravitational Microlensing Events' Astrophysical Journal, vol 756, no. 1, pp. 48., 10.1088/0004-637X/756/1/48

APA

CBE

Choi J-Y, Shin I-G, Han C, Udalski A, Sumi T, Gould A, Bozza V, Dominik M, Fouque´ P, Horne K, Szyman´ski MK, Kubiak M, Soszyn´ski I, Pietrzyn´ski G, Poleski R, Ulaczyk K, Pietrukowicz P, Kozłowski S, Skowron J, Wyrzykowski Ł, OGLE Collaboration, Abe F, Bennett DP, Bond IA, Botzler CS, Chote P, Freeman M, Fukui A, Furusawa K, Itow Y, Kobara S, Ling CH, Masuda K, Matsubara Y, Miyake N, Muraki Y, Ohmori K, Ohnishi K, Rattenbury NJ, Saito T, Sullivan DJ, Suzuki D, Suzuki K, Sweatman WL, Takino S, Tristram PJ, Wada K, Yock PCM, MOA Collaboration, Bramich DM, Snodgrass C, Steele IA, Street RA, Tsapras Y, RoboNet Collaboration, Alsubai KA, Browne P, Burgdorf MJ, Calchi Novati S, Dodds P, Dreizler S, Fang X-S, Grundahl F, Gu C-H, Hardis S, Harpsøe K, Hinse TC, Hornstrup A, Hundertmark M, Jessen-Hansen J, Jørgensen UG, Kains N, Kerins E, Liebig C, Lund M, Lunkkvist M, Mancini L, Mathiasen M, Penny MT, Rahvar S, Ricci D, Scarpetta G, Skottfelt J, Southworth J, Surdej J, Tregloan-Reed J, Wambsganss J, Wertz O, Almeida LA, Batista V, Christie G, DePoy DL, Dong S, Gaudi BS, Henderson C, Jablonski F, Lee C-U, McCormick J, McGregor D, Moorhouse D, Natusch T, Ngan H, Pogge RW, Tan T-G, Thornley G, Yee JC, Albrow MD, Bachelet E, Beaulieu J-P, Brillant S, Cassan A, Cole AA, Corrales E, Coutures C, Dieters S, Dominis Prester D, Donatowicz J, Greenhill J, Kubas D, Marquette J-B, Menzies JW, Sahu KC, Zub M. 2012. A new type of Ambiguity in the Planet and Binary Interpretations of Central Perturbations of High-magnification Gravitational Microlensing Events. Astrophysical Journal. 756(1):48. Available from: 10.1088/0004-637X/756/1/48

MLA

Vancouver

Author

Choi, J.-Y; Shin, I.-G; Han, C.; Udalski, A.; Sumi, T.; Gould, A.; Bozza, V.; Dominik, M.; Fouque´, P.; Horne, K.; Szyman´ski, M. K.; Kubiak, M.; Soszyn´ski, I.; Pietrzyn´ski, G.; Poleski, R.; Ulaczyk, K.; Pietrukowicz, P.; Kozłowski, S.; Skowron, J.; Wyrzykowski, Ł.; OGLE Collaboration; Abe, F.; Bennett, D. P.; Bond, I. A.; Botzler, C. S.; Chote, P.; Freeman, M.; Fukui, A.; Furusawa, K.; Itow, Y.; Kobara, S.; Ling, C. H.; Masuda, K.; Matsubara, Y.; Miyake, N.; Muraki, Y.; Ohmori, K.; Ohnishi, K.; Rattenbury, N. J.; Saito, To; Sullivan, D. J.; Suzuki, D.; Suzuki, K.; Sweatman, W. L.; Takino, S.; Tristram, P. J.; Wada, K.; Yock, P. C. M.; MOA Collaboration; Bramich, D. M.; Snodgrass, C.; Steele, I. A.; Street, R. A.; Tsapras, Y.; RoboNet Collaboration; Alsubai, K. A.; Browne, P.; Burgdorf, M. J.; Calchi Novati, S.; Dodds, P.; Dreizler, S.; Fang, X.-S; Grundahl, F.; Gu, C.-H; Hardis, S.; Harpsøe, K.; Hinse, T. C.; Hornstrup, Allan; Hundertmark, M.; Jessen-Hansen, J.; Jørgensen, U. G.; Kains, N.; Kerins, E.; Liebig, C.; Lund, M.; Lunkkvist, M.; Mancini, L.; Mathiasen, M.; Penny, M. T.; Rahvar, S.; Ricci, D.; Scarpetta, G.; Skottfelt, J.; Southworth, J.; Surdej, J.; Tregloan-Reed, J.; Wambsganss, J.; Wertz, O.; Almeida, L. A.; Batista, V.; Christie, G.; DePoy, D. L.; Dong, Subo; Gaudi, B. S.; Henderson, C.; Jablonski, F.; Lee, C.-U; McCormick, J.; McGregor, D.; Moorhouse, D.; Natusch, T.; Ngan, H.; Pogge, R. W.; Tan, T.-G; Thornley, G.; Yee, J. C.; Albrow, M. D.; Bachelet, E.; Beaulieu, J.-P; Brillant, S.; Cassan, A.; Cole, A. A.; Corrales, E.; Coutures, C.; Dieters, S.; Dominis Prester, D.; Donatowicz, J.; Greenhill, J.; Kubas, D.; Marquette, J.-B; Menzies, J. W.; Sahu, K. C.; Zub, M. / A new type of Ambiguity in the Planet and Binary Interpretations of Central Perturbations of High-magnification Gravitational Microlensing Events.

In: Astrophysical Journal, Vol. 756, No. 1, 2012, p. 48.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{e839423263c448219033e6f3b6585129,
title = "A new type of Ambiguity in the Planet and Binary Interpretations of Central Perturbations of High-magnification Gravitational Microlensing Events",
publisher = "Institute of Physics Publishing, Inc",
author = "J.-Y Choi and I.-G Shin and C. Han and A. Udalski and T. Sumi and A. Gould and V. Bozza and M. Dominik and P. Fouque´ and K. Horne and Szyman´ski, {M. K.} and M. Kubiak and I. Soszyn´ski and G. Pietrzyn´ski and R. Poleski and K. Ulaczyk and P. Pietrukowicz and S. Kozłowski and J. Skowron and Ł. Wyrzykowski and {OGLE Collaboration} and F. Abe and Bennett, {D. P.} and Bond, {I. A.} and Botzler, {C. S.} and P. Chote and M. Freeman and A. Fukui and K. Furusawa and Y. Itow and S. Kobara and Ling, {C. H.} and K. Masuda and Y. Matsubara and N. Miyake and Y. Muraki and K. Ohmori and K. Ohnishi and Rattenbury, {N. J.} and To Saito and Sullivan, {D. J.} and D. Suzuki and K. Suzuki and Sweatman, {W. L.} and S. Takino and Tristram, {P. J.} and K. Wada and Yock, {P. C. M.} and {MOA Collaboration} and Bramich, {D. M.} and C. Snodgrass and Steele, {I. A.} and Street, {R. A.} and Y. Tsapras and {RoboNet Collaboration} and Alsubai, {K. A.} and P. Browne and Burgdorf, {M. J.} and {Calchi Novati}, S. and P. Dodds and S. Dreizler and X.-S Fang and F. Grundahl and C.-H Gu and S. Hardis and K. Harpsøe and Hinse, {T. C.} and Allan Hornstrup and M. Hundertmark and J. Jessen-Hansen and Jørgensen, {U. G.} and N. Kains and E. Kerins and C. Liebig and M. Lund and M. Lunkkvist and L. Mancini and M. Mathiasen and Penny, {M. T.} and S. Rahvar and D. Ricci and G. Scarpetta and J. Skottfelt and J. Southworth and J. Surdej and J. Tregloan-Reed and J. Wambsganss and O. Wertz and Almeida, {L. A.} and V. Batista and G. Christie and DePoy, {D. L.} and Subo Dong and Gaudi, {B. S.} and C. Henderson and F. Jablonski and C.-U Lee and J. McCormick and D. McGregor and D. Moorhouse and T. Natusch and H. Ngan and Pogge, {R. W.} and T.-G Tan and G. Thornley and Yee, {J. C.} and Albrow, {M. D.} and E. Bachelet and J.-P Beaulieu and S. Brillant and A. Cassan and Cole, {A. A.} and E. Corrales and C. Coutures and S. Dieters and {Dominis Prester}, D. and J. Donatowicz and J. Greenhill and D. Kubas and J.-B Marquette and Menzies, {J. W.} and Sahu, {K. C.} and M. Zub",
year = "2012",
doi = "10.1088/0004-637X/756/1/48",
volume = "756",
number = "1",
pages = "48",
journal = "Astrophysical Journal",
issn = "0004-637X",

}

RIS

TY - JOUR

T1 - A new type of Ambiguity in the Planet and Binary Interpretations of Central Perturbations of High-magnification Gravitational Microlensing Events

A1 - Choi,J.-Y

A1 - Shin,I.-G

A1 - Han,C.

A1 - Udalski,A.

A1 - Sumi,T.

A1 - Gould,A.

A1 - Bozza,V.

A1 - Dominik,M.

A1 - Fouque´,P.

A1 - Horne,K.

A1 - Szyman´ski,M. K.

A1 - Kubiak,M.

A1 - Soszyn´ski,I.

A1 - Pietrzyn´ski,G.

A1 - Poleski,R.

A1 - Ulaczyk,K.

A1 - Pietrukowicz,P.

A1 - Kozłowski,S.

A1 - Skowron,J.

A1 - Wyrzykowski,Ł.

A1 - OGLE Collaboration,

A1 - Abe,F.

A1 - Bennett,D. P.

A1 - Bond,I. A.

A1 - Botzler,C. S.

A1 - Chote,P.

A1 - Freeman,M.

A1 - Fukui,A.

A1 - Furusawa,K.

A1 - Itow,Y.

A1 - Kobara,S.

A1 - Ling,C. H.

A1 - Masuda,K.

A1 - Matsubara,Y.

A1 - Miyake,N.

A1 - Muraki,Y.

A1 - Ohmori,K.

A1 - Ohnishi,K.

A1 - Rattenbury,N. J.

A1 - Saito,To

A1 - Sullivan,D. J.

A1 - Suzuki,D.

A1 - Suzuki,K.

A1 - Sweatman,W. L.

A1 - Takino,S.

A1 - Tristram,P. J.

A1 - Wada,K.

A1 - Yock,P. C. M.

A1 - MOA Collaboration,

A1 - Bramich,D. M.

A1 - Snodgrass,C.

A1 - Steele,I. A.

A1 - Street,R. A.

A1 - Tsapras,Y.

A1 - RoboNet Collaboration,

A1 - Alsubai,K. A.

A1 - Browne,P.

A1 - Burgdorf,M. J.

A1 - Calchi Novati,S.

A1 - Dodds,P.

A1 - Dreizler,S.

A1 - Fang,X.-S

A1 - Grundahl,F.

A1 - Gu,C.-H

A1 - Hardis,S.

A1 - Harpsøe,K.

A1 - Hinse,T. C.

A1 - Hornstrup,Allan

A1 - Hundertmark,M.

A1 - Jessen-Hansen,J.

A1 - Jørgensen,U. G.

A1 - Kains,N.

A1 - Kerins,E.

A1 - Liebig,C.

A1 - Lund,M.

A1 - Lunkkvist,M.

A1 - Mancini,L.

A1 - Mathiasen,M.

A1 - Penny,M. T.

A1 - Rahvar,S.

A1 - Ricci,D.

A1 - Scarpetta,G.

A1 - Skottfelt,J.

A1 - Southworth,J.

A1 - Surdej,J.

A1 - Tregloan-Reed,J.

A1 - Wambsganss,J.

A1 - Wertz,O.

A1 - Almeida,L. A.

A1 - Batista,V.

A1 - Christie,G.

A1 - DePoy,D. L.

A1 - Dong,Subo

A1 - Gaudi,B. S.

A1 - Henderson,C.

A1 - Jablonski,F.

A1 - Lee,C.-U

A1 - McCormick,J.

A1 - McGregor,D.

A1 - Moorhouse,D.

A1 - Natusch,T.

A1 - Ngan,H.

A1 - Pogge,R. W.

A1 - Tan,T.-G

A1 - Thornley,G.

A1 - Yee,J. C.

A1 - Albrow,M. D.

A1 - Bachelet,E.

A1 - Beaulieu,J.-P

A1 - Brillant,S.

A1 - Cassan,A.

A1 - Cole,A. A.

A1 - Corrales,E.

A1 - Coutures,C.

A1 - Dieters,S.

A1 - Dominis Prester,D.

A1 - Donatowicz,J.

A1 - Greenhill,J.

A1 - Kubas,D.

A1 - Marquette,J.-B

A1 - Menzies,J. W.

A1 - Sahu,K. C.

A1 - Zub,M.

AU - Choi,J.-Y

AU - Shin,I.-G

AU - Han,C.

AU - Udalski,A.

AU - Sumi,T.

AU - Gould,A.

AU - Bozza,V.

AU - Dominik,M.

AU - Fouque´,P.

AU - Horne,K.

AU - Szyman´ski,M. K.

AU - Kubiak,M.

AU - Soszyn´ski,I.

AU - Pietrzyn´ski,G.

AU - Poleski,R.

AU - Ulaczyk,K.

AU - Pietrukowicz,P.

AU - Kozłowski,S.

AU - Skowron,J.

AU - Wyrzykowski,Ł.

AU - OGLE Collaboration,

AU - Abe,F.

AU - Bennett,D. P.

AU - Bond,I. A.

AU - Botzler,C. S.

AU - Chote,P.

AU - Freeman,M.

AU - Fukui,A.

AU - Furusawa,K.

AU - Itow,Y.

AU - Kobara,S.

AU - Ling,C. H.

AU - Masuda,K.

AU - Matsubara,Y.

AU - Miyake,N.

AU - Muraki,Y.

AU - Ohmori,K.

AU - Ohnishi,K.

AU - Rattenbury,N. J.

AU - Saito,To

AU - Sullivan,D. J.

AU - Suzuki,D.

AU - Suzuki,K.

AU - Sweatman,W. L.

AU - Takino,S.

AU - Tristram,P. J.

AU - Wada,K.

AU - Yock,P. C. M.

AU - MOA Collaboration,

AU - Bramich,D. M.

AU - Snodgrass,C.

AU - Steele,I. A.

AU - Street,R. A.

AU - Tsapras,Y.

AU - RoboNet Collaboration,

AU - Alsubai,K. A.

AU - Browne,P.

AU - Burgdorf,M. J.

AU - Calchi Novati,S.

AU - Dodds,P.

AU - Dreizler,S.

AU - Fang,X.-S

AU - Grundahl,F.

AU - Gu,C.-H

AU - Hardis,S.

AU - Harpsøe,K.

AU - Hinse,T. C.

AU - Hornstrup,Allan

AU - Hundertmark,M.

AU - Jessen-Hansen,J.

AU - Jørgensen,U. G.

AU - Kains,N.

AU - Kerins,E.

AU - Liebig,C.

AU - Lund,M.

AU - Lunkkvist,M.

AU - Mancini,L.

AU - Mathiasen,M.

AU - Penny,M. T.

AU - Rahvar,S.

AU - Ricci,D.

AU - Scarpetta,G.

AU - Skottfelt,J.

AU - Southworth,J.

AU - Surdej,J.

AU - Tregloan-Reed,J.

AU - Wambsganss,J.

AU - Wertz,O.

AU - Almeida,L. A.

AU - Batista,V.

AU - Christie,G.

AU - DePoy,D. L.

AU - Dong,Subo

AU - Gaudi,B. S.

AU - Henderson,C.

AU - Jablonski,F.

AU - Lee,C.-U

AU - McCormick,J.

AU - McGregor,D.

AU - Moorhouse,D.

AU - Natusch,T.

AU - Ngan,H.

AU - Pogge,R. W.

AU - Tan,T.-G

AU - Thornley,G.

AU - Yee,J. C.

AU - Albrow,M. D.

AU - Bachelet,E.

AU - Beaulieu,J.-P

AU - Brillant,S.

AU - Cassan,A.

AU - Cole,A. A.

AU - Corrales,E.

AU - Coutures,C.

AU - Dieters,S.

AU - Dominis Prester,D.

AU - Donatowicz,J.

AU - Greenhill,J.

AU - Kubas,D.

AU - Marquette,J.-B

AU - Menzies,J. W.

AU - Sahu,K. C.

AU - Zub,M.

PB - Institute of Physics Publishing, Inc

PY - 2012

Y1 - 2012

N2 - High-magnification microlensing events provide an important channel to detect planets. Perturbations near the peak of a high-magnification event can be produced either by a planet or a binary companion. It is known that central perturbations induced by both types of companions can be generally distinguished due to the essentially different magnification pattern around caustics. In this paper, we present a case of central perturbations for which it is difficult to distinguish the planetary and binary interpretations. The peak of a lensing light curve affected by this perturbation appears to be blunt and flat. For a planetary case, this perturbation occurs when the source trajectory passes the negative perturbation region behind the back end of an arrowhead-shaped central caustic. For a binary case, a similar perturbation occurs for a source trajectory passing through the negative perturbation region between two cusps of an astroid-shaped caustic. We demonstrate the degeneracy for two high-magnification events of OGLE-2011-BLG-0526 and OGLE-2011-BLG-0950/MOA-2011-BLG-336. For OGLE-2011-BLG-0526, the χ2 difference between the planetary and binary model is ~3, implying that the degeneracy is very severe. For OGLE-2011-BLG-0950/MOA-2011-BLG-336, the stellar binary model is formally excluded with Δχ2 ~ 105 and the planetary model is preferred. However, it is difficult to claim a planet discovery because systematic residuals of data from the planetary model are larger than the difference between the planetary and binary models. Considering that two events observed during a single season suffer from such a degeneracy, it is expected that central perturbations experiencing this type of degeneracy is common.

AB - High-magnification microlensing events provide an important channel to detect planets. Perturbations near the peak of a high-magnification event can be produced either by a planet or a binary companion. It is known that central perturbations induced by both types of companions can be generally distinguished due to the essentially different magnification pattern around caustics. In this paper, we present a case of central perturbations for which it is difficult to distinguish the planetary and binary interpretations. The peak of a lensing light curve affected by this perturbation appears to be blunt and flat. For a planetary case, this perturbation occurs when the source trajectory passes the negative perturbation region behind the back end of an arrowhead-shaped central caustic. For a binary case, a similar perturbation occurs for a source trajectory passing through the negative perturbation region between two cusps of an astroid-shaped caustic. We demonstrate the degeneracy for two high-magnification events of OGLE-2011-BLG-0526 and OGLE-2011-BLG-0950/MOA-2011-BLG-336. For OGLE-2011-BLG-0526, the χ2 difference between the planetary and binary model is ~3, implying that the degeneracy is very severe. For OGLE-2011-BLG-0950/MOA-2011-BLG-336, the stellar binary model is formally excluded with Δχ2 ~ 105 and the planetary model is preferred. However, it is difficult to claim a planet discovery because systematic residuals of data from the planetary model are larger than the difference between the planetary and binary models. Considering that two events observed during a single season suffer from such a degeneracy, it is expected that central perturbations experiencing this type of degeneracy is common.

U2 - 10.1088/0004-637X/756/1/48

DO - 10.1088/0004-637X/756/1/48

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1

VL - 756

SP - 48

ER -