Yale Univ, Yale Ctr Astron & Astrophys, New Haven, CT 06520 USA..
Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA..
Univ Antofagasta, Fac Cs Basicas, Unidad Astron, Avda U Antofagasta 02800, Antofagasta, Chile..
Univ Paris Diderot, CNRS, Sorbonne Paris Cite, APC,IN2P3,CEA,IRFU,Observ Paris, Paris, France..
Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA..
Sorbonne Univ, CNRS, LPNHE, IN2P3, 4 Pl Jussieu, F-75005 Paris, France..
Johns Hopkins Univ, Dept Phys & Astron, 3400 N Charles St, Baltimore, MD 21218 USA..
Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA..
Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA.;Penn State Univ, Eberly Coll Sci, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA..
Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland..
Leibniz Inst Astrophys Potsdam AIP, Sternwarte 16, D-14482 Potsdam, Germany.;Humboldt Univ, Inst Phys, Newtonstr 15, D-12589 Berlin, Germany..
Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.;Univ Notre Dame, JINA Ctr Evolut Elements, Notre Dame, IN 46556 USA..
Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA..
Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA.;Pontificia Univ Catolica Chile, Inst Astrofis, Av Vicuna Mackenna 4860, Santiago 7820436, Chile..
Vanderbilt Univ, Dept Phys & Astron, 6301 Stevenson Ctr Ln, Nashville, TN 37235 USA..
Apache Point Observ, POB 59, Sunspot, NM 88349 USA.;New Mexico State Univ, Dept Astron, Box 30001,MSC 4500, Las Cruces, NM 88003 USA.;Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow, Russia..
Univ Chile, Av Libertador Bernardo Ohiggins, Santiago 1058, Chile..
Aix Marseille Univ, CNRS, LAM, Marseille, France..
Univ Antofagasta, Fac Cs Basicas, Unidad Astron, Avda U Antofagasta 02800, Antofagasta, Chile..
Univ Toronto, Dept Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada.;Univ Toronto, Dunlap Inst Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada..
Bates Coll, Dept Phys & Astron, 44 Campus Ave, Lewiston, ME 04240 USA..
Apache Point Observ, POB 59, Sunspot, NM 88349 USA..
Univ Calif Santa Cruz, Univ Calif Observ, Santa Cruz, CA 95064 USA..
Univ Paris Saclay, CEA, Irfu, F-91191 Gif Sur Yvette, France..
Univ Paris Diderot, CNRS, Sorbonne Paris Cite, APC,IN2P3,CEA,IRFU,Observ Paris, Paris, France..
Penn State Univ, Eberly Coll Sci, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA..
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico..
Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Campus Morelia,AP 3-72, Mexico City 58089, Michoacan, Mexico..
Johns Hopkins Univ, Dept Phys & Astron, Ctr Astrophys Sci, 3400 North Charles St, Baltimore, MD 21218 USA..
Sejong Univ, Dept Astron & Space Sci, Seoul 143747, South Korea..
New Mexico State Univ, Dept Astron, Box 30001,MSC 4500, Las Cruces, NM 88003 USA..
Univ La Serena, Inst Invest Multidisciplinario Ciencia & Technol, Benavente 980, La Serena, Chile.;CNRS, IRAP, 9 Av Colonel Roche,BP 44346, F-31028 Toulouse 4, France.;Univ Toulouse, UPS OMP, IRAP, Toulouse, France..
Univ Concepcion, Dept Astron, Casilla 160-C, Concepcion, Chile.;Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA..
Univ Colorado, Dept Astrophys & Planetary Sci, Ctr Astrophys & Space Astron, 389 UCB, Boulder, CO 80309 USA..
Univ Fed Rio Grande do Sul, Inst Fis, Campus Vale, BR-91501970 Porto Alegre, RS, Brazil.;Lab Interinstituc eAstron, 77 Rua Gen Jose Cristino, BR-20921400 Rio De Janeiro, Brazil..
Lab Interinstituc eAstron, 77 Rua Gen Jose Cristino, BR-20921400 Rio De Janeiro, Brazil.;Observ Nacl, Rio De Janeiro, Brazil..
Aix Marseille Univ, CNRS, CPPM, IN2P3, Marseille, France..
Observ Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA..
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico..
Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA.;Observ Nacl, Rio De Janeiro, Brazil..
Lab Interinstituc eAstron, 77 Rua Gen Jose Cristino, BR-20921400 Rio De Janeiro, Brazil.;Univ Fed Santa Maria, Dept Fis, CCNE, BR-97105900 Santa Maria, RS, Brazil..
Univ Utah, Dept Phys & Astron, 115 S 1400 E, Salt Lake City, UT 84112 USA..
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico..
Univ Nacl Autonoma Mexico, Inst Fis, Apdo Postal 20-364, Mexico City, DF, Mexico..
Aix Marseille Univ, CNRS, LAM, Marseille, France..
Univ Paris 07, Univ Pierre & Marie Curie Paris 6, CNRS, LPNHE,IN2P3, 4 Pl Jussieu, F-75252 Paris, France..
Lab Interinstituc eAstron, 77 Rua Gen Jose Cristino, BR-20921400 Rio De Janeiro, Brazil.;Univ Fed Santa Maria, Dept Fis, CCNE, BR-97105900 Santa Maria, RS, Brazil..
EPFL, Lab Astrophys, Inst Phys, Observ Sauverny, CH-1290 Versoix, Switzerland..
Bates Coll, Dept Phys & Astron, 44 Campus Ave, Lewiston, ME 04240 USA..
Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA..
Univ Texas Austin, McDonald Observ, 1 Univ Stn, Austin, TX 78712 USA..
Univ Paris Saclay, CEA, Irfu, F-91191 Gif Sur Yvette, France..
Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland..
Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany..
Univ Utah, Dept Phys & Astron, 115 S 1400 E, Salt Lake City, UT 84112 USA..
Univ Virginia, Dept Astron, 530 McCormick Rd, Charlottesville, VA 22904 USA..
Univ Wisconsin Madison, Dept Astron, 475 N Charter St, Madison, WI 53726 USA..
Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA..
Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England..
Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA.;Penn State Univ, Eberly Coll Sci, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA..
Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany..
Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA..
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico..
Univ Concepcion, Dept Astron, Casilla 160-C, Concepcion, Chile..
Lab Interinstituc eAstron, 77 Rua Gen Jose Cristino, BR-20921400 Rio De Janeiro, Brazil..
Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany..
Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA..
Apache Point Observ, POB 59, Sunspot, NM 88349 USA..
Penn State Univ, Eberly Coll Sci, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA..
Univ Pittsburgh, Dept Phys & Astron, PITT PACC, Pittsburgh, PA 15260 USA..
Inst Astrofis Canarias, E-38205 Tenerife, Spain.;ULL, Dept Astrofis, E-38206 Tenerife, Spain..
Inst Astrofis Canarias, E-38205 Tenerife, Spain.;ULL, Dept Astrofis, E-38206 Tenerife, Spain..
Inst Astrofis Canarias, E-38205 Tenerife, Spain.;ULL, Dept Astrofis, E-38206 Tenerife, Spain..
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico..
Sorbonne Univ, ILP, 98 Bis Blvd Arago, F-75014 Paris, France.;Univ Paris 06, Lab Phys Nucl & Hautes Energies, 4 Pl Jussieu, F-75005 Paris, France..
Apache Point Observ, POB 59, Sunspot, NM 88349 USA..
Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciama Bldg, Portsmouth PO1 3FX, Hants, England..
ULL, Dept Astrofis, E-38206 Tenerife, Spain..
Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany..
Univ Paris 07, Univ Pierre & Marie Curie Paris 6, CNRS, LPNHE,IN2P3, 4 Pl Jussieu, F-75252 Paris, France..
York Univ, Dept Phys & Astron, 4700 Keele St, Toronto, ON M3J 1P3, Canada..
Case Western Reserve Univ, Dept Astron, Cleveland, OH 44106 USA..
New Mexico State Univ, Dept Astron, Box 30001,MSC 4500, Las Cruces, NM 88003 USA..
Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA..
Univ Virginia, Dept Astron, 530 McCormick Rd, Charlottesville, VA 22904 USA..
Penn State Univ, Eberly Coll Sci, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA..
Univ Nacl Autonoma Mexico, Inst Astron, Unidad Acad Ensenada, Ensenada 22860, BC, Mexico..
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico..
NYU, Dept Phys, Ctr Cosmol & Particle Phys, 726 Broadway,Room 1005, New York, NY 10003 USA..
New Mexico State Univ, Dept Astron, Box 30001,MSC 4500, Las Cruces, NM 88003 USA..
Acad Sinica, Inst Astron & Astrophys, POB 23-141, Taipei 10617, Taiwan..
Univ Toronto, Dunlap Inst Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada..
Univ Utah, Dept Phys & Astron, 115 S 1400 E, Salt Lake City, UT 84112 USA..
Inst Astrofis Canarias, E-38205 Tenerife, Spain.;ULL, Dept Astrofis, E-38206 Tenerife, Spain..
Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA.;Ohio State Univ, Ctr Cosmol & AstroParticle Phys, 191 W Woodruff Ave, Columbus, OH 43210 USA..
Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85748 Garching, Germany..
Bates Coll, Dept Phys & Astron, 44 Campus Ave, Lewiston, ME 04240 USA..
Apache Point Observ, POB 59, Sunspot, NM 88349 USA..
Univ Helsinki, Dept Phys, Gustaf Hallstromin Katu 2a, FI-00014 Helsinki, Finland..
Inst Astrofis Canarias, E-38205 Tenerife, Spain.;ULL, Dept Astrofis, E-38206 Tenerife, Spain..
Inst Milenio Astrofis, Av Vicuna Mackenna 4860, Santiago, Chile.;Pontificia Univ Catolica Chile, Inst Astrofis, Av Vicuna Mackenna 4860, Santiago 7820436, Chile.;Astrophys Res Consortium, Phys Astron Bldg,3910 15th Ave NE, Seattle, WA 98195 USA..
Univ Toronto, Dunlap Inst Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada..
Univ Paris Saclay, CEA, Irfu, F-91191 Gif Sur Yvette, France..
Sejong Univ, Dept Astron & Space Sci, Seoul 143747, South Korea..
Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China..
Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China.;Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China..
Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China.;Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China..
Apache Point Observ, POB 59, Sunspot, NM 88349 USA..
Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA..
Lab Interinstituc eAstron, 77 Rua Gen Jose Cristino, BR-20921400 Rio De Janeiro, Brazil.;Observ Nacl, Rio De Janeiro, Brazil..
Univ Virginia, Dept Astron, 530 McCormick Rd, Charlottesville, VA 22904 USA..
Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA..
Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA..
Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany..
Eotvos Lorand Univ, Gothard Astrophys Observ, Szombathely, Hungary..
Leibniz Inst Astrophys Potsdam AIP, Sternwarte 16, D-14482 Potsdam, Germany..
Univ Chile, Av Libertador Bernardo Ohiggins, Santiago 1058, Chile..
Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA..
Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany..
Univ Pittsburgh, Dept Phys & Astron, PITT PACC, Pittsburgh, PA 15260 USA..
Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciama Bldg, Portsmouth PO1 3FX, Hants, England..
Univ Antofagasta, Fac Cs Basicas, Unidad Astron, Avda U Antofagasta 02800, Antofagasta, Chile..
Vanderbilt Univ, Dept Phys & Astron, 6301 Stevenson Ctr Ln, Nashville, TN 37235 USA..
Apache Point Observ, POB 59, Sunspot, NM 88349 USA..
Apache Point Observ, POB 59, Sunspot, NM 88349 USA..
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico..
Apache Point Observ, POB 59, Sunspot, NM 88349 USA..
Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciama Bldg, Portsmouth PO1 3FX, Hants, England..
Aix Marseille Univ, CNRS, LAM, Marseille, France..
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico.;Univ La Serena, Inst Invest Multidisciplinario Ciencia & Technol, Benavente 980, La Serena, Chile..
UPMC, CNRS, UMR 7095, Inst Astropys Paris, 98bis Bd Arago, F-75014 Paris, France..
UPMC, CNRS, UMR 7095, Inst Astropys Paris, 98bis Bd Arago, F-75014 Paris, France..
Aix Marseille Univ, CNRS, CPPM, IN2P3, Marseille, France..
Univ Autonoma Madrid, CSIC, IFT, E-28049 Madrid, Spain.;CSIC, IAA, Glorieta Astron S-N, E-18008 Granada, Spain..
ULL, Dept Astrofis, E-38206 Tenerife, Spain.;Univ Pittsburgh, Dept Phys & Astron, PITT PACC, Pittsburgh, PA 15260 USA.;New Mexico State Univ, Dept Astron, Box 30001,MSC 4500, Las Cruces, NM 88003 USA.;Lab Interinstituc eAstron, 77 Rua Gen Jose Cristino, BR-20921400 Rio De Janeiro, Brazil.;CALTECH, IPAC, 1200 E Calif Blvd, Pasadena, CA 91125 USA..
Univ Fed Rio Grande do Sul, Inst Fis, Campus Vale, BR-91501970 Porto Alegre, RS, Brazil.;Lab Interinstituc eAstron, 77 Rua Gen Jose Cristino, BR-20921400 Rio De Janeiro, Brazil..
Johns Hopkins Univ, Dept Phys & Astron, 3400 N Charles St, Baltimore, MD 21218 USA..
EPFL, Lab Astrophys, Inst Phys, Observ Sauverny, CH-1290 Versoix, Switzerland..
Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA..
Lab Interinstituc eAstron, 77 Rua Gen Jose Cristino, BR-20921400 Rio De Janeiro, Brazil.;Univ Fed Santa Maria, Dept Fis, CCNE, BR-97105900 Santa Maria, RS, Brazil..
Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany..
UAM, Dept Fis Teor M8, E-28049 Madrid, Spain..
Univ Nacl Autonoma Mexico, Inst Astron, Unidad Acad Ensenada, Ensenada 22860, BC, Mexico..
Sejong Univ, Dept Astron & Space Sci, Seoul 143747, South Korea..
Bates Coll, Dept Phys & Astron, 44 Campus Ave, Lewiston, ME 04240 USA..
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico..
Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA..
Univ Chile, Av Libertador Bernardo Ohiggins, Santiago 1058, Chile..
Univ Fed Rio Grande do Sul, Inst Fis, Campus Vale, BR-91501970 Porto Alegre, RS, Brazil.;Lab Interinstituc eAstron, 77 Rua Gen Jose Cristino, BR-20921400 Rio De Janeiro, Brazil..
Univ Fed Rio Grande do Sul, Inst Fis, Campus Vale, BR-91501970 Porto Alegre, RS, Brazil.;Lab Interinstituc eAstron, 77 Rua Gen Jose Cristino, BR-20921400 Rio De Janeiro, Brazil..
Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA..
Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA.;Penn State Univ, Eberly Coll Sci, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA..
Univ Nacl Autonoma Mexico, Inst Astron, Unidad Acad Ensenada, Ensenada 22860, BC, Mexico..
Leibniz Inst Astrophys Potsdam AIP, Sternwarte 16, D-14482 Potsdam, Germany..
Univ Illinois, Dept Astron, 1002 W Green St, Urbana, IL 61801 USA.;Natl Ctr Supercomp Applicat, 1205 West Clark St, Urbana, IL 61801 USA..
Univ Colorado, Dept Astrophys & Planetary Sci, Ctr Astrophys & Space Astron, 389 UCB, Boulder, CO 80309 USA..
Aarhus Univ, Dept Phys & Astron, Stellar Astrophys Ctr, Ny Munkegade 120, DK-8000 Aarhus C, Denmark..
Observ Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA..
Univ Virginia, Dept Astron, 530 McCormick Rd, Charlottesville, VA 22904 USA..
Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England..
Natl Opt Astron Observ, 950 North Cherry Ave, Tucson, AZ 85719 USA..
Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA..
Vanderbilt Univ, Dept Phys & Astron, 6301 Stevenson Ctr Ln, Nashville, TN 37235 USA..
Johns Hopkins Univ, Dept Phys & Astron, 3400 N Charles St, Baltimore, MD 21218 USA..
Open Univ, Dept Phys Sci, Milton Keynes MK7 6AA, Bucks, England..
Univ Tokyo, Todai Inst Adv Study, Kavli Inst Phys & Math Universe, Kashiwa, Chiba 2778583, Japan..
Univ Colorado, Dept Astrophys & Planetary Sci, Ctr Astrophys & Space Astron, 389 UCB, Boulder, CO 80309 USA..
Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA..
Eotvos Lorand Univ, Gothard Astrophys Observ, Szombathely, Hungary..
Johns Hopkins Univ, Dept Phys & Astron, 3400 N Charles St, Baltimore, MD 21218 USA..
Univ Concepcion, Dept Astron, Casilla 160-C, Concepcion, Chile..
Aix Marseille Univ, CNRS, CPPM, IN2P3, Marseille, France.;Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China.;Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China..
Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA..
Univ Virginia, Dept Astron, 530 McCormick Rd, Charlottesville, VA 22904 USA..
Johns Hopkins Univ, Dept Phys & Astron, 3400 N Charles St, Baltimore, MD 21218 USA..
Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciama Bldg, Portsmouth PO1 3FX, Hants, England..
Univ Wisconsin Madison, Dept Astron, 475 N Charter St, Madison, WI 53726 USA..
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico..
Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany..
Brookhaven Natl Lab, Upton, NY 11973 USA..
Univ Concepcion, Dept Astron, Casilla 160-C, Concepcion, Chile..
New Mexico State Univ, Dept Astron, Box 30001,MSC 4500, Las Cruces, NM 88003 USA..
Univ North Carolina Asheville, Dept Phys, One Univ Hts, Asheville, NC 28804 USA.;Open Univ, Dept Phys Sci, Milton Keynes MK7 6AA, Bucks, England..
Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China..
Natl Opt Astron Observ, 950 North Cherry Ave, Tucson, AZ 85719 USA..
Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA.;Ohio State Univ, Ctr Cosmol & AstroParticle Phys, 191 W Woodruff Ave, Columbus, OH 43210 USA..
Austin Coll, Dept Phys, Sherman, TX 75090 USA..
Univ Wisconsin Madison, Dept Astron, 475 N Charter St, Madison, WI 53726 USA..
Liverpool John Moores Univ, Astrophys Res Inst, IC2,Liverpool Sci Pk,146 Brownlow Hill, Liverpool L3 5RF, Merseyside, England..
Univ Virginia, Dept Astron, 530 McCormick Rd, Charlottesville, VA 22904 USA..
Univ Pittsburgh, Dept Phys & Astron, PITT PACC, Pittsburgh, PA 15260 USA..
Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Shanghai, Peoples R China..
Univ Kentucky, Dept Phys & Astron, 505 Rose St, Lexington, KY 40506 USA..
Univ Paris Saclay, CEA, Irfu, F-91191 Gif Sur Yvette, France..
Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China.;Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China..
Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciama Bldg, Portsmouth PO1 3FX, Hants, England.;Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China..
Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China..
Johns Hopkins Univ, Dept Phys & Astron, Ctr Astrophys Sci, 3400 North Charles St, Baltimore, MD 21218 USA..
Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA..
Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China..
IOP Publishing Ltd , 2018. Vol. 235, no 2, article id 42