Dear colleagues,

Sorry for the multiple email announcements, but this is another reminder of registration for the PFS/HSC-AGN conference at ASIAA in March 2026.

The deadline for submitting a presentation (oral or poster) application and requesting hotel reservations is *** December 31st ***. https://events.asiaa.sinica.edu.tw/workshop/20260317/registration.php

We look forward to seeing you in Taipei!

Best regards, Yoshiki Toba on behalf of the SOC and PFS-AGN WG

========================= 2nd circular of the AGN conference “SMBH growth viewed with large field surveys: special focus on the initial results from Subaru PFS” March 17 - 19, 2026 Institute of Astronomy and Astrophysics, Academia Sinica (ASIAA), Taipei, Taiwan https://events.asiaa.sinica.edu.tw/workshop/20260317/index.php #

We are pleased to inform you that an AGN international conference entitled “SMBH growth viewed with large field surveys: special focus on the initial results from Subaru PFS” will be held at ASIAA (Taipei, Taiwan) on March 17-19, 2026. We assume a hybrid style (face-to-face and online). We expect the conference to be a full three-day event.

Registration and hotel reservations (Howard Hotel near the venue) are now open. https://events.asiaa.sinica.edu.tw/workshop/20260317/registration.php

The deadline for submitting a presentation (oral or poster) application and requesting hotel reservations is *** December 31st ***.

This deadline has been extended by about half a month from the #

initial deadline (12/15).

The number of rooms the LOC can secure at the Howard Hotel is #

limited. Therefore, submitting a hotel reservation request does not guarantee a room. Please be aware that, depending on the number of requests, you may be asked to share a room (especially students) or may need to arrange your own hotel.

We look forward to this conference being an excellent opportunity to share and discuss the latest research findings from Subaru PFS. We welcome presentations and ideas not only on AGN research using PFS/HSC, but also on galaxy/AGN science based on wide-field imaging/spectroscopic observations using instruments such as DESI, Euclid, Rubin/LSST, and Roman.

Best regards, Yoshiki Toba on behalf of the SOC

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Scientific rationale: #

One of the most critical issues in astronomy and astrophysics today is to understand when and how supermassive black holes (SMBHs) have formed and evolved across cosmic history. The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) has been mighty in this field, producing a variety of scientific results, from the host galaxies in the local universe to the most distant quasars. Additionally, once wide-area imaging/spectroscopic observations with Euclid, Rubin/LSST, and Roman become available, AGN science can be anticipated to advance, e.g., from statistical properties and rare population search. This conference aims to share our insights into the growth history of SMBHs, derived from HSC data (including both SSP and open-use), and to explore strategies for advancing the field’s heritage into the future. In particular, the science operation of the Prime Focus Spectrograph (PFS) and PFS-SSP began in March 2025, providing millions of galaxy/AGN spectra in the future. Hence, this conference will be an excellent opportunity to share scientific results based on initial PFS (open-use/SSP) data and discuss the spectroscopic properties of AGN. We invite all researchers who are leading or interested in AGN studies based on wide-field survey data to this conference. Any AGN sciences/proposal presentation with those facilities is welcome.

The topics to be covered in the conference include (but are not limited to):

• AGN search with multi-wavelength/time-domain data
• Statistical properties of AGN/galaxies (e.g., luminosity function and correlation function)
• SMBH growth over cosmic time
• AGN host properties (e.g., morphology and AGN-SF connection)
• AGN/galaxy environment
• Any PFS-related topics
• Status of on-going AGN/galaxy projects and future prospects

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Invited speakers #

• Thaisa Storchi Bergmann (UFRGS) (remote)
• Ke-Jung Chen (ASIAA)
• Kohei Ichikawa (Tohoku Univ.)
• Linhua Jiang (KIAA) (remote)
• Daichi Kashino (NAOJ)
• Mitsuru Kokubo (NAOJ)
• Yen-Ting Lin (ASIAA)
• Masafusa Onoue (Waseda Univ.)
• Tomomi Sunayama (ASIAA)
• Yoshiki Toba (Ritsumeikan Univ.)
• Po-Feng Wu (NTU）

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Registration: #

Please visit the registration form: https://events.asiaa.sinica.edu.tw/workshop/20260317/registration.php

No registration fee. #

The deadline for oral/poster presentation is December 31. #

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Hotel reservation: #

A limited number of rooms will be available at the Howard Civil Service International House (Howard Hotel): https://www.howard-hotels.com.tw/en_US/HotelBusiness/96 If you need assistance booking a room at Howard, please submit your request via the registration form.

If there are many applications, we cannot guarantee a reservation #

even if you apply.

Please pay close attention to communications from LOC or the hotel. #

Please also check the following information: #

https://events.asiaa.sinica.edu.tw/workshop/20260317/venue.php

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Travel support: #

Unfortunately, travel expenses will not be supported this time. We appreciate your understanding.

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Important dates: #

• Early November: 2nd circular. The registration (including the hotel reservation requests) starts.
• December 31: Registration deadline for those who give oral/poster presentations.
• During January 2026: 3rd circular. The program is open.
• End of January: Deadline for registration without oral/poster presentations. Final headcount for banquet/lunch boxes, etc.
• Early March: Final circular

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Conference venue #

ASIAA 1F auditorium

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Code of Conduct #

https://hsc.mtk.nao.ac.jp/ssp/code-of-conduct/#hsc-survey-collaboration-meetings

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Scientific Organization Committee (SOC) #

Masayuki Akiyama (Tohoku Univ.) Kohei Ichikawa (Tohoku Univ.) Masatoshi Imanishi (NAOJ) Yoshiki Matsuoka (Ehime Univ.) Tohru Nagao (Ehime Univ.) Youichi Ohyama (ASIAA) Ayumi Takahashi (Kanagawa Univ.) Yoshiki Toba (Ritsumeikan Univ., Chair) Keiichi Wada (Kagoshima Univ.)

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Local Organization Committee (LOC) #

• Youichi Ohyama (ASIAA, Chair)
• Yen-Ting Lin (ASIAA)
• Cindy Chiu (ASIAA)
• Grace Huang (ASIAA)
• Shirley Huang (ASIAA)
• Tina Lin (ASIAA) =========================