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Download This Issue (Pdf) Volume 43 Number 1 JAAVSO 2015 The Journal of the American Association of Variable Star Observers The Curious Case of ASAS J174600-2321.3: an Eclipsing Symbiotic Nova in Outburst? Light curve of ASAS J174600-2321.3, based on EROS-2, ASAS-3, and APASS data. Also in this issue... • The Early-Spectral Type W UMa Contact Binary V444 And • The δ Scuti Pulsation Periods in KIC 5197256 • UXOR Hunting among Algol Variables • Early-Time Flux Measurements of SN 2014J Obtained with Small Robotic Telescopes: Extending the AAVSO Light Curve Complete table of contents inside... The American Association of Variable Star Observers 49 Bay State Road, Cambridge, MA 02138, USA The Journal of the American Association of Variable Star Observers Editor John R. Percy Edward F. Guinan Paula Szkody University of Toronto Villanova University University of Washington Toronto, Ontario, Canada Villanova, Pennsylvania Seattle, Washington Associate Editor John B. Hearnshaw Matthew R. Templeton Elizabeth O. Waagen University of Canterbury AAVSO Christchurch, New Zealand Production Editor Nikolaus Vogt Michael Saladyga Laszlo L. Kiss Universidad de Valparaiso Konkoly Observatory Valparaiso, Chile Budapest, Hungary Editorial Board Douglas L. Welch Geoffrey C. Clayton Katrien Kolenberg McMaster University Louisiana State University Universities of Antwerp Hamilton, Ontario, Canada Baton Rouge, Louisiana and of Leuven, Belgium and Harvard-Smithsonian Center David B. Williams Zhibin Dai for Astrophysics Whitestown, Indiana Yunnan Observatories Cambridge, Massachusetts Kunming City, Yunnan, China Thomas R. Williams Ulisse Munari Houston, Texas Kosmas Gazeas INAF/Astronomical Observatory University of Athens of Padua Lee Anne M. Willson Athens, Greece Asiago, Italy Iowa State University Ames, Iowa The Council of the American Association of Variable Star Observers 2014–2015 Director Arne A. Henden (through January 31, 2015) Stella Kafka (from February 1, 2015) President Jennifer L. Sokoloski Past President Mario E. Motta 1st Vice President Kristine Larsen 2nd Vice President Roger S. Kolman Secretary Gary Walker Treasurer Bill Goff Councilors Barbara G. Harris Joseph Patterson Rodney H. Howe Richard Sabo Katrien Kolenberg David G. Turner John C. Martin Doug Welch ISSN 0271-9053 JAAVSO The Journal of The American Association of Variable Star Observers Volume 43 Number 1 2015 AAVSO 49 Bay State Road Cambridge, MA 02138 ISSN 0271-9053 USA Publication Schedule The Journal of the American Association of Variable Star Observers is published twice a year, June 15 (Number 1 of the volume) and December 15 (Number 2 of the volume). The submission window for inclusion in the next issue of JAAVSO closes six weeks before the publication date. A manuscript will be added to the table of contents for an issue when it has been fully accepted for publication upon successful completion of the referee process; these articles will be available online prior to the publication date. An author may not specify in which issue of JAAVSO a manuscript is to be published; accepted manuscripts will be published in the next available issue, except under extraordinary circumstances. Page Charges Page charges are waived for Members of the AAVSO. Publication of unsolicited manuscripts in JAAVSO requires a page charge of US $100/page for the final printed manuscript. Page charge waivers may be provided under certain circumstances. Publication in JAAVSO With the exception of abstracts of papers presented at AAVSO meetings, papers submitted to JAAVSO are peer-reviewed by individuals knowledgable about the topic being discussed. We cannot guarantee that all submissions to JAAVSO will be published, but we encourage authors of all experience levels and in all fields related to variable star astronomy and the AAVSO to submit manuscripts. We especially encourage students and other mentees of researchers affiliated with the AAVSO to submit results of their completed research. Subscriptions Institutions and Libraries may subscribe to JAAVSO as part of the Complete Publications Package or as an individual subscription. Individuals may purchase printed copies of recent JAAVSO issues via Createspace. Paper copies of JAAVSO issues prior to volume 36 are available in limited quantities directly from AAVSO Headquarters; please contact the AAVSO for available issues. Instructions for Submissions The Journal of the AAVSO welcomes papers from all persons concerned with the study of variable stars and topics specifically related to variability. All manuscripts should be written in a style designed to provide clear expositions of the topic. Contributors are encouraged to submit digitized text in MS WORD, LATEX+POSTSCRIPT, or plain-text format. Manuscripts may be mailed electronically to [email protected] or submitted by postal mail to JAAVSO, 49 Bay State Road, Cambridge, MA 02138, USA. Manuscripts must be submitted according to the following guidelines, or they will be returned to the author for correction: Manuscripts must be: 1) original, unpublished material; 2) written in English; 3) accompanied by an abstract of no more than 100 words. 4) not more than 2,500–3,000 words in length (10–12 pages double-spaced). Figures for publication must: 1) be camera-ready or in a high-contrast, high-resolution, standard digitized image format; 2) have all coordinates labeled with division marks on all four sides; 3) be accompanied by a caption that clearly explains all symbols and significance, so that the reader can understand the figure without reference to the text. Maximum published figure space is 4.5” by 7”. When submitting original figures, be sure to allow for reduction in size by making all symbols, letters, and division marks sufficiently large. Photographs and halftone images will be considered for publication if they directly illustrate the text. Tables should be: 1) provided separate from the main body of the text; 2) numbered sequentially and referred to by Arabic number in the text, e.g., Table 1. References: 1) References should relate directly to the text. 2) References should be keyed into the text with the author’s last name and the year of publication, e.g., (Smith 1974; Jones 1974) or Smith (1974) and Jones (1974). 3) In the case of three or more joint authors, the text reference should be written as follows: (Smith et al. 1976). 4) All references must be listed at the end of the text in alphabetical order by the author’s last name and the year of publication, according to the following format: Brown, J., and Green, E. B. 1974, Astrophys. J., 200, 765. Thomas, K. 1982, Phys. Rep., 33, 96. 5) Abbreviations used in references should be based on recent issues of the Journal or the listing provided at the beginning of Astronomy and Astrophysics Abstracts (Springer-Verlag). Miscellaneous: 1) Equations should be written on a separate line and given a sequential Arabic number in parentheses near the right-hand margin. Equations should be referred to in the text as, e.g., equation (1). 2) Magnitude will be assumed to be visual unless otherwise specified. 3) Manuscripts may be submitted to referees for review without obligation of publication. Online Access Articles published in JAAVSO, and information for authors and referees may be found online at: http://www.aavso.org/journal-aavso © 2015 The American Association of Variable Star Observers. All rights reserved. The Journal of the American Association of Variable Star Observers Volume 43, Number 1, 2015 Editorial The Rise and Fall and Rise of the David Dunlap Observatory John R. Percy 1 Variable star analysis Long Term Photometric and Spectroscopic Monitoring of Semiregular Variable Stars Robert R. Cadmus, Jr. 3 Photometric Analyses and Spectral Identification of the Early-Spectral Type W UMa Contact Binary V444 Andromedae Ronald G. Samec, Russell Robb, Danny R. Faulkner, Walter Van Hamme 8 The Curious Case of ASAS J174600-2321.3: an Eclipsing Symbiotic Nova in Outburst? Stefan Hümmerich, Sebastián Otero, Patrick Tisserand, Klaus Bernhard 14 New Variable Stars Discovered by the APACHE Survey. II. Results After the Second Observing Season Mario Damasso, Lorenzo Gioannini, Andrea Bernagozzi, Enzo Bertolini, Paolo Calcidese, Albino Carbognani, Davide Cenadelli, Jean Marc Christille, Paolo Giacobbe, Luciano Lanteri, Mario G. Lattanzi, Richard Smart, Allesandro Sozzetti 25 UXOR Hunting among Algol Variables Michael Poxon 35 Sudden Period Change and Dimming of the Eclipsing Binary V752 Centauri Anthony Mallama, Hristo Pavlov 38 The δ Scuti Pulsation Periods in KIC 5197256 Garrison Turner, John Holaday 40 Early-Time Flux Measurements of SN 2014J Obtained with Small Robotic Telescopes: Extending the AAVSO Light Curve Björn Poppe, Thorsten Plaggenborg, WeiKang Zheng, Isaac Shivvers, Koichi Itagaki, Alexei V. Filippenko, Jutta Kunz 43 Recently Determined Light Elements for the δ Scuti Star ZZ Microscopii Roy Andrew Axelsen, Tim Napier-Munn 50 A Photometric Study of ASAS J184708-3340.2: an Eclipsing Binary with Total Eclipses Robert C. Berrington, Erin M. Tuhey 54 A Binary Model for the Emission Line Star FX Velorum Mel Blake, Maisey Hunter 59 Comparison Between Synthetic and Photometric Magnitudes for the Sloan Standard Stars Anthony Mallama 64 Table of Contents continued on following pages Variable star data Revised Light Elements of 78 Southern Eclipsing Binary Systems Margaret Streamer, Jeff Byron, David J. W. Moriarty, Tom Richards, Bill Allen, Roy Axelsen, Col Bembrick, Mark Blackford, Terry Bohlsen, David Herald, Roland Idaczyk, Stephen Kerr, Ranald McIntosh, Yenal
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