Published for the

AmericAn AstronomicAl societyby

IOP Publishing

THE ASTRONOMICAL

JOURNAL

Founded by b.A. Gould

1849

ISSN: 0004-6256

TH

E A

ST

RO

NO

MIC

AL

JOU

RN

AL

THE ASTRONOMICAL JOURNAL

VOLUME 143 NUMBER 52012 May ~ No. 1877

2012 May

Vol. 143, N

o. 5, Articles 104–127

VOLUME 143, NUMBER 5 2012 MAYCONTENTS

(See front pages for subject-ordered contents)

OBSERVATIONAL AND DYNAMICAL CHARACTERIZATION OF MAIN-BELT COMET P/2010 R2 (La Sagra)Henry H. Hsieh, Bin Yang, Nader Haghighipour, Bojan Novakovic, Robert Jedicke, Richard J. Wainscoat,Larry Denneau, Shinsuke Abe, Wen-Ping Chen, Alan Fitzsimmons, Mikael Granvik, Tommy Grav, Wing Ip,Heather M. Kaluna, Daisuke Kinoshita, Jan Kleyna, Matthew M. Knight, Pedro Lacerda, Carey M. Lisse,Eric Maclennan, Karen J. Meech, Marco Micheli, Andrea Milani, Jana Pittichova, Eva Schunova, David J. Tholen,Lawrence H. Wasserman, William S. Burgett, K. C. Chambers, Jim N. Heasley, Nick Kaiser, Eugene A. Magnier,Jeffrey S. Morgan, Paul A. Price, Uffe G. Jørgensen, Martin Dominik, Tobias Hinse, Kailash Sahu, and Colin Snodgrass

104

UPDATE ON THE NATURE OF VIRGO OVERDENSITYAna Bonaca, Mario Juric, Zeljko Ivezic, Dmitry Bizyaev, Howard Brewington, Elena Malanushenko,Viktor Malanushenko, Daniel Oravetz, Kaike Pan, Alaina Shelden, Audrey Simmons, and Stephanie Snedden

105

PROPER MOTIONS OF THE HH 110/270 SYSTEMP. Kajdic, B. Reipurth, A. C. Raga, J. Bally, and J. Walawender

106

VERY LOW MASS STELLAR AND SUBSTELLAR COMPANIONS TO SOLAR-LIKE STARS FROM MARVELS.I. A LOW-MASS RATIO STELLAR COMPANION TO TYC 4110-01037-1 IN A 79 DAY ORBITJohn P. Wisniewski, Jian Ge, Justin R. Crepp, Nathan De Lee, Jason Eastman, Massimiliano Esposito, Scott W. Fleming,B. Scott Gaudi, Luan Ghezzi, Jonay I. Gonzalez Hernandez, Brian L. Lee, Keivan G. Stassun, Eric Agol,Carlos Allende Prieto, Rory Barnes, Dmitry Bizyaev, Phillip Cargile, Liang Chang, Luiz N. Da Costa,G. F. Porto De Mello, Bruno Femenıa, Leticia D. Ferreira, Bruce Gary, Leslie Hebb, Jon Holtzman, Jian Liu, Bo Ma,Claude E. Mack III, Suvrath Mahadevan, Marcio A. G. Maia, Duy Cuong Nguyen, Ricardo L. C. Ogando,Daniel J. Oravetz, Martin Paegert, Kaike Pan, Joshua Pepper, Rafael Rebolo, Basilio Santiago, Donald P. Schneider,Alaina C Shelden, Audrey Simmons, Benjamin M. Tofflemire, Xiaoke Wan, Ji Wang, and Bo Zhao

107

SIMULTANEOUS B′V′R′ MONITORING OF BL LACERTAE OBJECT S5 0716+714 AND DETECTION OFINTER-BAND TIME DELAYJianghua Wu, Markus Bottcher, Xu Zhou, Xiangtao He, Jun Ma, and Zhaoji Jiang

108

MOTION IN THE PHOTOGRAVITATIONAL ELLIPTIC RESTRICTED THREE-BODY PROBLEM UNDER ANOBLATE PRIMARYJagadish Singh and Aishetu Umar

109

VISCOSITY IN PLANETARY RINGS WITH SPINNING SELF-GRAVITATING PARTICLESYuki Yasui, Keiji Ohtsuki, and Hiroshi Daisaka

110

CHARACTERIZING THE COOL KOIs. II. THE M DWARF KOI-254 AND ITS HOT JUPITERJohn Asher Johnson, J. Zachary Gazak, Kevin Apps, Philip S. Muirhead, Justin R. Crepp, Ian J. M. Crossfield,Tabetha Boyajian , Kaspar von Braun, Barbara Rojas-Ayala, Andrew W. Howard, Kevin R. Covey, Everett Schlawin,Katherine Hamren, Timothy D. Morton, Geoffrey W. Marcy, and James P. Lloyd

111

GRANULATION IN THE PHOTOSPHERE OF ζ CYGNIDavid F. Gray

112

A MISMATCH IN THE ULTRAVIOLET SPECTRA BETWEEN LOW-REDSHIFT ANDINTERMEDIATE-REDSHIFT TYPE Ia SUPERNOVAE AS A POSSIBLE SYSTEMATIC UNCERTAINTY FORSUPERNOVA COSMOLOGYRyan J. Foley, Alexei V. Filippenko, Richard Kessler, Bruce Bassett, Joshua A. Frieman, Peter M. Garnavich,Saurabh W. Jha, Kohki Konishi, Hubert Lampeitl, Adam G. Riess, Masao Sako, Donald P. Schneider, Jesper Sollerman,and Mathew Smith

113

THE Na 8200 Å DOUBLET AS AN AGE INDICATOR IN LOW-MASS STARSJoshua E. Schlieder, Sebastien Lepine, Emily Rice, Michal Simon, Drummond Fielding, and Rachael Tomasino

114

MODELING PHOTODISINTEGRATION-INDUCED TeV PHOTON EMISSION FROM LOW-LUMINOSITYGAMMA-RAY BURSTSXue-Wen Liu, Xue-Feng Wu, and Tan Lu

115

NEW X-RAY DETECTIONS OF WNL STARSStephen L. Skinner, Svetozar A. Zhekov, Manuel Gudel, Werner Schmutz, and Kimberly R. Sokal

116

(Contents continued on page iv)

AJ143-5_cover.indd 2-4 16/04/2012 11:41