242 — 10 February 2013 Editor: Bo Reipurth ([email protected])
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THE STAR FORMATION NEWSLETTER An electronic publication dedicated to early stellar/planetary evolution and molecular clouds No. 242 — 10 February 2013 Editor: Bo Reipurth ([email protected]) 1 List of Contents The Star Formation Newsletter Interview ...................................... 3 My Favorite Object ............................ 6 Editor: Bo Reipurth [email protected] Perspective ................................... 11 Technical Editor: Eli Bressert Abstracts of Newly Accepted Papers .......... 14 [email protected] Abstracts of Newly Accepted Major Reviews . 49 Technical Assistant: Hsi-Wei Yen Dissertation Abstracts ........................ 50 [email protected] Meeting Announcements ...................... 53 Editorial Board Other Meetings of Possible Interest ........... 56 Short Announcements ........................ 58 Joao Alves Alan Boss Jerome Bouvier Lee Hartmann Thomas Henning Paul Ho Cover Picture Jes Jorgensen Charles J. Lada This image shows the Horsehead Nebula (Barnard Thijs Kouwenhoven 33) in the lower right corner, together with the re- Michael R. Meyer flection nebula NGC 2023 (to the upper left) illu- Ralph Pudritz minated by the B1.5 star HD 37903. The image Luis Felipe Rodr´ıguez was taken with ESO’s new survey telescope VISTA Ewine van Dishoeck at the Paranal Observatory through J, H, and Ks Hans Zinnecker filters. North is up and east is left. A bright young star, B33-1, is located at the northwestern corner of The Star Formation Newsletter is a vehicle for the Horsehead, together with a fainter young star fast distribution of information of interest for as- just south of it, also at the edge of the ionization tronomers working on star and planet formation front. and molecular clouds. You can submit material Image courtesy ESO/J. Emerson/VISTA. Acknowl- for the following sections: Abstracts of recently edgment: Cambridge Astronomical Survey Unit. accepted papers (only for papers sent to refereed journals), Abstracts of recently accepted major re- views (not standard conference contributions), Dis- sertation Abstracts (presenting abstracts of new Ph.D dissertations), Meetings (announcing meet- ings broadly of interest to the star and planet for- mation and early solar system community), New Submitting your abstracts Jobs (advertising jobs specifically aimed towards persons within the areas of the Newsletter), and Latex macros for submitting abstracts Short Announcements (where you can inform or re- and dissertation abstracts (by e-mail to quest information from the community). Addition- [email protected]) are appended to ally, the Newsletter brings short overview articles each Call for Abstracts. You can also on objects of special interest, physical processes or submit via the Newsletter web inter- theoretical results, the early solar system, as well face at http://www2.ifa.hawaii.edu/star- as occasional interviews. formation/index.cfm Newsletter Archive www.ifa.hawaii.edu/users/reipurth/newsletter.htm 2 A: Yes, this became my passion. I ground more mirrors and built telescopes. I learned about Chabot Observa- John Bally tory in Oakland which had 8” and 20” refracting tele- in conversation with Bo Reipurth scopes and hosted the Eastbay Astronomical Society. In my early teens, I met John Dobson who hauled a 24” telescope to Mt. Diablo. I joined his ‘San Francisco Side- walk Astronomers’ at star parties on Freemont Peak (near Monterey) and Glacier Point in Yosemite and saw stun- ning views of the planets, clusters, nebulae, and galaxies. I was hooked on the beauty of the sky. I read an article in the local paper about George Herbig. The article described his work on star formation at Lick Observatory, and what I later learned were his studies of the Herbig-Haro objects and T Tauri stars in Orion. This contributed to my interest in astronomy. I loved to play with optics. I discovered the benefits of un- obstructed optical systems. One design dubbed the ”Yolo” (after the Central Valley county) used a pair of tilted long- focus concave spheres and a warping harness to remove Q: You were born in Hungary? astigmatism. It delivered the best high contrast images I A: I was born in Szombathely, Hungary as Janos Istvan had ever seen. I experimented with my own tilted mir- Csaba Pogacsas. My mother, Livia Bally, and I left hun- ror telescopes and won a science fair in 10th grade. My gary in 1957 after the Soviet invasion, spent about six optics experience was noticed by my high-school teachers. months in Austria and one and a half years in Italy while In 12th grade at J.F. Kennedy high-school in Richmond, I waiting for quotas to open-up to enter the United States. gave lectures on optics and telescopes to my class-mates. My great uncle Laszlo Hudec (see Wikipedia) and his wife I was given keys to Chabot where I took many lunar and Gisella who lived in Berkeley sponsored our entry. Laszlo planetary photos and long, hand-guided exposures. suggested that in the States, instead of Pogacsas, I use In August 1968, after graduating from high school, at my mother’s maiden name, Bally. Thus, I became John a star-party at an amateur astronomy conference in Las Bally. Unfortunately, Laszlo died a few months before we Cruces, New Mexico, I was searching for the Ring Nebula arrived, but Gisella took us in. I started school in Berke- with a 10” telescope which had no finder. Sweeping the ley without knowing any English, so my teachers put me sky in Lyra, I chanced upon an unexpected fuzzy object in in the back of the classroom to work arithmetic problems. a patch of sky I knew well. Comet Bally-Clayton made the Q: How did you become interested in astronomy? press and prompted me to study astronomy at Berkeley. A: Gisella gave me a small telescope, a 2.5” reflector, along I earned my way through college by living in the co-ops with a small book, ”Stars; A Golden Nature Guide”. The for room and board and assisting with planetarium shows, telescope spent months in a closet. One night, I noticed school programs, and public observing nights at the Chabot an asterism I recognized from that book. I remembered Observatory. I found an old diffraction grating in the base- the telescope, assembled it, and found the Pleiades. It was ment with an inscription, ”Ruled on Roland’s machine, a thrill to recognize something in the sky that I had only 1882”. I built a spectrograph to house it, took spectra of seen in pictures. On another evening I saw a spectacular stars, the brightest nebulae, and showed the Solar spec- bolide breaking up overhead. Thus, I looked for books trum to visiting students and the public. As a result of about the sky in our junior high library and found the many nights at Chabot, the turbulent times in Berkeley three-volume ”Amateur Telescope Making” (ATM) series (these were the days of the Vietnam war protests), and by Scientific American. At age 12, I convinced my parents spending too much time with amateur astronomy, my un- to buy me a mirror-making kit and I ground and polished dergraduate grades suffered. My advisors said I would a 6” mirror in our basement bathroom. But, I had no never become a scientist. idea how to get it aluminized. Following instructions in Q: How did you get into graduate school after such a non- the ATM books, I procured the chemicals to silver glass. I stellar undergraduate career? obtained a functional coating and built a primitive equa- A: After Berkeley, I became a ski-bum at Lake Tahoe. torial mount and tube, and started observing. In the evenings I read Richard Feynmann’s ”Lectures in Q: Did you get further involved in amateur astronomy? Physics” and fell in love with the subject. I spent the fol- 3 lowing year at Cal State Hayward ‘brushing-up’ on basic project was to search infrared sources in star forming re- physics and getting A’s. In Fall 1973, I toured the Stanford gions for outflows with the 7-meter offset Cassegrain an- Linear Accelerator and SPEAR, the electron-positron col- tenna. I met my wife Kim, an engineer, at Bell Labs in lider, which triggered my interest in high-energy physics. I 1981. Two children, Trina and Lex, followed. applied to graduate schools on the East coast of the United I spent the next eleven years in the remarkable environ- States to make a clean start in physics or astronomy. ment of Bell Labs. We were judged on what we were I entered graduate school in Amherst at the University of accomplishing rather than on proposals. I had funding to Massachusetts in Fall 1974 spending my first year in Mike support continued infrared observations on Kitt Peak and Kraisler’s high energy physics group building and calibrat- radio-follow-ups of outflow detections at the VLA. The CO ing scintillator plastic and Cerenkov detectors. During outflow survey was published with Charlie Lada in 1983 the following summer at Brookhaven, I tested components and my postdoc was converted into a permanent position. and mapped detector magnetic fields for an experiment to With dedicated use of the 7-meter I fully mapped clouds measure the form factors of the Λ particle (similar to the such as Perseus, Orion, and the Central Molecular Zone, neutron but with a strange quark substituted for one of obtaining CO, 13CO, and CS J=2-1 maps with 104 to over the down quarks). But, I decided that a large group with 105 spectra, data sets of unprecedented size at the time. hundreds of others was not for me. The Crawford Hill astronomy group consisted of Bob Wil- Next, I worked with Ted Harrison on a cosmology problem son, Rich Linke, Tony Stark, and me, with occasional which resulted in my first ApJ paper.