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253 — 11 January 2014 Editor: Bo Reipurth (Reipurth@Ifa.Hawaii.Edu) List of Contents THE STAR FORMATION NEWSLETTER An electronic publication dedicated to early stellar/planetary evolution and molecular clouds No. 253 — 11 January 2014 Editor: Bo Reipurth ([email protected]) List of Contents The Star Formation Newsletter Interview ...................................... 3 My Favorite Object ............................ 6 Editor: Bo Reipurth [email protected] Abstracts of Newly Accepted Papers .......... 11 Technical Editor: Eli Bressert Abstracts of Newly Accepted Major Reviews . 32 [email protected] Dissertation Abstracts ........................ 36 Technical Assistant: Hsi-Wei Yen New Jobs ..................................... 37 [email protected] Summary of Upcoming Meetings ............. 39 Editorial Board Joao Alves Alan Boss Jerome Bouvier Cover Picture Lee Hartmann Thomas Henning The image shows the northern region of the L1641 Paul Ho cloud in Orion containing the Herbig-Haro objects Jes Jorgensen HH 1 and 2 (right of center) and the Herbig Ae/Be Charles J. Lada star V380 Ori (in blue reflection nebula). The Thijs Kouwenhoven image is a mosaic of deep Hα images from the Michael R. Meyer Subaru telescope, HST images of V380 Ori and Ralph Pudritz of HH 1 and 2, digitized sky survey images to fill Luis Felipe Rodr´ıguez in gaps in the Subaru images (upper left corner). Ewine van Dishoeck Other HH objects are visible, among others HH 3 Hans Zinnecker (upper extreme right), HH 35 (above V380 Ori), The Star Formation Newsletter is a vehicle for HH 36 (left side), and HH 130 (lower left corner). fast distribution of information of interest for as- The very deep Subaru images reveal intricate tronomers working on star and planet formation details in the highly perturbed cloud surface. and molecular clouds. You can submit material for the following sections: Abstracts of recently Hubble images from the Hubble Heritage Team, accepted papers (only for papers sent to refereed Subaru images from Bo Reipurth, DSS images journals), Abstracts of recently accepted major re- courtesy NASA. views (not standard conference contributions), Dis- sertation Abstracts (presenting abstracts of new Mosaic courtesy Robert Gendler Ph.D dissertations), Meetings (announcing meet- (http://www.robgendlerastropics.com) ings broadly of interest to the star and planet for- mation and early solar system community), New Jobs (advertising jobs specifically aimed towards persons within the areas of the Newsletter), and Short Announcements (where you can inform or re- quest information from the community). Addition- Submitting your abstracts ally, the Newsletter brings short overview articles on objects of special interest, physical processes or Latex macros for submitting abstracts theoretical results, the early solar system, as well and dissertation abstracts (by e-mail to as occasional interviews. [email protected]) are appended to each Call for Abstracts. You can also submit via the Newsletter web interface at http://www2.ifa. Newsletter Archive hawaii.edu/star-formation/index.cfm www.ifa.hawaii.edu/users/reipurth/newsletter.htm 2 about this behavior since I did the same thing in the past [somewhat embarrassed laughter]! But my goal as Editor- Claude Bertout in-Chief was to try to change A&A so that my younger in conversation with Bo Reipurth colleagues would not be tempted to publish elsewhere. To be frank, I was not entirely successful in changing this old habit, but along the way our journal was thoroughly modernized and its impact did improve. For this, I first thank our very dedicated team of scientific editors, and also the A&A Board of Directors, a governing body that at crucial times showed the foresight and audacity that were necessary to get things moving in the right direction. And now to answer your question after this long preamble, I truly enjoyed my years as Editor-in-Chief, in good part because of the privileged relationship with authors and referees, and also because the position provides the widest view of current astronomical research. Q: 30 years ago you proposed that T Tauri South could be a protostar, a then elusive species. This has been borne out by subsequent observations. How did you come up with this idea? You have just completed a very long term as Editor- Q: A: O nostalgia! That was my first paper after I won a in-Chief of Astronomy & Astrophysics. This has been a CNRS position and moved from Heidelberg to Paris. I major service to our community. Did you find the work had certainly not anticipated that T Tau was as complex rewarding also for yourself? a region as the recent high-resolution observations have A: Our core academic journals, and first of all ApJ, AJ, shown it to be! The protostar idea emerged after T Tau MNRAS, and A&A are an integral part of the global re- was resolved as a binary by Dyck, Simon, and Zuckerman search infrastructure and remain as important as ever to in 1982. De Vegt showed that the radio emission observed the community. Why? First, journals are the guardians at the VLA by Bieging, Cohen, and Schwartz could be of ethical values that are essential to science but are in- attributed to the South component. I suggested that the creasingly challenged by the mounting pressure to publish radio flux could be reproduced by free-free emission from and the accompanying cut-and-paste temptation. Second, an infalling, accretion-shock-heated envelope. One fact journals participate in an important give-and-take process that I also found very puzzling was the huge difference in with the community. On one hand, the journals rely on extinction between T Tau N and S. How was that possible the community for filtering the research results through given the short projected distance if T Tau S was not a refereeing, which ensures that publications have the high- deeply embedded object? est possible relevance. On the other hand, the community, Q: Five years later you published, together with Gibor through its hiring and promotion processes, makes use of Basri and J´erˆome Bouvier, a highly influential paper on the de facto quality labels given to publications by journals “Accretion Disks around T Tauri Stars”. How have your when making decisions that affect the careers of individ- conclusions held up with time, and where is this field head- ual researchers. Finally, journals ensure that the corpus of ing? peer-validated data and results are both widely accessible and archived in a perennial way. This is done in close col- A: Let me start with a few words about Gibor and J´erˆome, laboration with data centers and publication repositories, two astronomers extraordinaires with whom I was very for- where the accepted papers can be accessed freely. tunate to collaborate on several projects. Gibor had by then just finished an extensive program of spectrophoto- When the position of Editor-in-Chief was proposed to me, metric observations of T Tauri stars at Lick and had ob- I did not quite foresee the huge workload that came with tained quasi-simultaneous IUE data, while J´erˆome, whom it, but saw this job as a true challenge to help our Eu- I was still advising at that time, had spent quite some ropean journal – which is by far the youngest among the time as coop´erant at ESO La Silla during which he accu- core astronomy publications – gain in quality, image and mulated a bunch of optical and near-infrared photometric impact. We have this very specific problem at A&A, that data for a similar sample of objects. We therefore had some researchers working in Europe tend to publish their a large database at our disposal for probing the accretion better articles in ApJ because they see it as more presti- disk hypothesis proposed by Lynden-Bell and Pringle more gious and expect more citations. I do not complain much 3 than ten years earlier, which had attracted little attention Alain had also convinced the funding agencies to create in the T Tauri community. I spent a couple of wonderfully the Grenoble Observatory, which was then hosted in tem- productive years in Berkeley at Gibor’s invitation, during porary University buildings. which I developed and applied the code described in that Before he moved to Paris in 1990 to take over the direc- series of papers to Gibor’s and Jerome’s data . tion of the IAP, Alain asked me to replace him as the head The modeling emphasis was on the optical and UV regions, of the Observatory and of its astrophysical component, since data simultaneity is crucial for modeling these ob- the Laboratoire d’Astrophysique (LAOG). Of course, I jects, which can vary quickly in this spectral range. The saw this as a unique opportunity to develop star forma- UV probes the star/disk interaction zone, which was as- tion studies in France, and several students and collabo- sumed to be a boundary layer for the sake of minimizing rators at the IAP (J´erˆome Bouvier, Sylvie Cabrit, Isabelle the number of free parameters in the computation. In Joncour, Anne-Marie Lagrange, Fabien Malbet, Fran¸cois that paper we also proposed a magnetically-controlled ac- M´enard) joined in the venture, which was strongly sup- cretion model for DF Tauri, which was showing periodic ported by the CNRS, the Grenoble University, and the photometric variability that could be attributed to hot ac- regional governament. Eventually, all of these individuals cretion spots. This model was independently worked out obtained permanent positions in Grenoble. in more detail by Arieh K¨onigl and others and became the Once all those dynamics have come together, it is eas- enduring paradigm for T Tauri star accretion in general, ier to attract additional talents, even in a country where although boundary layers might still be useful for explain- people are reluctant to move, and we were soon joined ing some accretion regimes.
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