ULLYSES (UV Legacy Library of Young Stars as Essential Standards) DR4

Dear Colleagues,

It is our pleasure to announce the fourth data release (DR4) from the ULLYSES (UV Legacy Library of Young Stars as Essential Standards) Director’s Discretionary program with the Hubble Space Telescope (HST).

ULLYSES DR4 includes data for 251 targets that are distributed as follows:

  • Medium-resolution COS FUV spectra for 51 T Tauri stars, 31 of which also have customized calibrations of low-resolution STIS NUV-optical-NIR spectra. These customized calibrations include the de-fringing of G750L NIR spectra and tailored extraction of companions, see Proffitt et al. 2021.

  • COS spectroscopic time series for the four T Tauri stars spectroscopically monitored over time with HST: TW Hya, BP Tau, RU Lup, and GM Aur.

  • LCOGT photometric time series for 32 T Tauri stars (including TW Hya).

  • STIS G230L, G430L, and G750L spectra of 8 low-mass stellar companions present in the long-slit observations of ULLYSES T Tauri targets

  • Medium- and high-resolution UV spectra and associated high-level science products (HLSPs; co-added and abutted spectra) obtained with HST for 196 massive stars in the Large and Small Magellanic Clouds. Spectra of the 178 targets previously included in DR3 now incorporate the latest calibration updates to CalCOS and CalSTIS products.

  • Far Ultraviolet Spectroscopic Explorer (FUSE) spectra of 103 massive stars in the LMC and SMC. The highest level HLSPs include the HST and FUSE spectra abutted together.

  • Drizzled WFC3 HLSPs of NGC 3109 in the F225W, F275W, F336W, F475W, and F814W bands. These images were used to estimate the SED and UV flux of the 3 ULLYSES massive, low-metallicity stars for which follow-up COS G140L/800 spectroscopy is planned. The corresponding photometry is included in the ULLYSES low-metallicity target page.

The data can be found at the data download webpage of the ULLYSES website (HLSPs and contributing data), the MAST Data Discovery Portal (HLSPs and contributing data), or directly at the HLSP collection for ULLYSES (HLSPs only). Complete data release notes describing the DR4 data products are available on the ULLYSES website.

For more information about the program and data, please visit the ULLYSES website. Questions regarding the program and data can be directed to the HST/ULLYSES helpdesk.

Kind regards,

The ULLYSES implementation team at STScI

You may opt-out from future generic messages by clicking this or cut and paste the following url into your browser:

Fizeau exchange visitors program - Call for applications

Dear colleagues!

The Fizeau exchange visitors program in optical interferometry funds (travel and accommodation) visits of researchers to an institute of his/her choice (within the European Community) to perform collaborative work and training on one of the active topics of the European Interferometry Initiative. The visits will typically last for one month and strengthen the network of astronomers engaged in technical, scientific, and training work on optical/infrared interferometry. The program is open for all levels of astronomers (Ph.D. students to tenured staff), with priority given to PhD students and young postdocs. Non-EU-based missions will only be funded if considered essential by the Fizeau Committee.

From January 2021 onwards, applications to travel to VLTI Expertise Centres have priority, given the new financial rules applying to the programme. Applicants are strongly encouraged to seek also partial support from their home or host institutions.

The deadline for applications is November 15 for visits to be carried out between mid-January 2022 and July 2022.

Further information and application forms can be found at

The program is funded by OPTICON//RadioNET Pilot Program.

Please distribute this message also to potentially interested colleagues outside of your community!

Looking forward to your applications,

Josef Hron

(for the European Interferometry Initiative)

New dates and open registration for the Hartmann-fest

New dates and open registration for "Star Formation: From Clouds to Discs - A tribute to the career of Lee Hartmann"

In light of the easing of travel restrictions expected in the coming months, the organizers of the conference 'Star Formation: From Clouds to Discs', in honor of the career of Lee Hartmann, have decided to postpone the conference by two more months, to allow more participants to be able to attend in person. The conference will now go ahead from the 18th to 21st of October, 2021, in a hybrid format, including a mix of online and in-person talks and discussions. Due to the ongoing restrictions, the number of participants able to attend in person at the Grand Hotel Malahide, in Dublin, Ireland, will be limited according to Irish government and health authority guidelines.

Abstract submission (with the option of proposing a contribution either virtually or in-person) and registration are now open. The abstract submission deadline is 18th July, 2021. Early-bird registration ends on 18th August, 2021, while late registration for in-person attendance will be open until 18th September, 2021. We look forward to seeing you there.

Start of Pre-Registration Protostars & Planets VII

Pre-registration is now available for Protostars and Planets VII meeting that is postponed about one year from the original schedule. (The original announcement was shown in Star Formation Newsletter No. 321.) This is NOT an official registration and you still need to sign up for the official registration when it is announced.

With this pre-registration, organizers will make a mailing list, to which announcements related to the conference will be posted. The organizers would also like to make an estimate of the number of potential participants to prepare the meeting. It should take only 3 minutes. Please visit the following website:

Along with the pre-registration, we would like to collect your current intention of (a) the style of participation and (b) poster presentation. Currently, the organizers are planning to hold the conference in 21st - 27th March 2022 on-site in Kyoto. The organizers think that creative and active discussion in person will play an important role in conferences in general, and in particular for Protostars and Planets VII, as critical discussion on each review talk will greatly improve the quality of the PPVII Book that will be published after the meeting. We would like to create a book that would remain as a standard textbook for the next decade.

Thank you.

Scientific Advisory Committee:

João Alves (Austria), Philippe André (France), Isabelle Baraffe (UK), John Carpenter (Chile), Paola Caselli (Germany), Wen-Ping Chen (Taiwan), Kees Dullemond (Germany), Tristan Guillot (France), Alyssa Goodman (USA), Lynne Hillenbrand (USA), Thomas Henning (Germany), Shigeru Ida (Japan), Doug Johnstone (Canada), Inga Kamp (Netherlands), Mark Krumholz (Australia), Jeong-Eun Lee (Korea), Victoria Meadows (USA), Michael Meyer (USA), Richard Nelson (UK), Toshikazu Onishi (Japan), Eve Ostriker (USA), Ilaria Pascucci (USA), Yasuhito Sekine (Japan), Shogo Tachibana (Japan), Mario Tafalla (Spain), Ewine van Dishoeck (Netherland), and Jonathan Williams (USA)

List of Editors:

Shu-ichiro Inutsuka (Nagoya University, Chair), Motohide Tamura (University of Tokyo), Yuri Aikawa (University of Tokyo), Takayuki Muto (Kogakuin University), and Kengo Tomida (Osaka University)

The CARMA-NRO Orion Survey—Data Release

The CARMA-NRO Orion Survey data first presented in Kong et al., enhanced with additional coverage of the L1641-C region to the south of the integral-shaped filament, is available online.

The data includes position–position–velocity cubes for the molecular lines 12CO(1–0), 13CO(1–0), and C18O(1–0). The mapped region spans about 2.5 deg along the Orion A cloud in the north-south direction, providing an unprecedented overview of the extended molecular gas in this benchmark cloud.

Kong et al. and this research note should be cited when using these data.

Funding Available for SOFIA Archival Research

SOFIA is pleased to invite proposals for the SOFIA Archival Research Program (SARP), aimed at encouraging the use of SOFIA archival observations for impactful science. This program funds archival research projects primarily using SOFIA data in the Infrared Science Archive (IRSA) and is open to all astronomers affiliated with a U.S. institution.

Two distinct types of proposals for the archival research program are solicited:

  • Regular Proposals - Large programs requesting up to $150,000 per year, or more in exceptional cases, and lasting up to two years

  • Small Proposals - Targeted programs requesting up to $50,000 and lasting for one year This call is open to all U.S. institutions.

Proposals are due February 12, 2021. Learn more here.

This program complements the Astrophysics Data Analysis Program (ADAP) under the NASA Research Opportunities in Space and Earth Sciences (ROSES) solicitation.

The SFN is moving from Hawaii to Vienna

Over the next months, the SFN will move from Hawaii to Vienna. Over the transition period, that will take the SFN from PDF based to web based, some things will likely break. If you find problems, incorrect or missing information, or have suggestions on how to improve the SFN web, don't hesitate to send me a message.