eprintid: 10197435
rev_number: 9
eprint_status: archive
userid: 699
dir: disk0/10/19/74/35
datestamp: 2024-09-24 12:46:32
lastmod: 2024-09-24 12:46:32
status_changed: 2024-09-24 12:46:32
type: proceedings_section
metadata_visibility: show
sword_depositor: 699
creators_name: Ohsawa, Ryou
creators_name: Kawata, Daisuke
creators_name: Kamizuka, Takafumi
creators_name: Yamada, Yoshiyuki
creators_name: Löffler, Wolfgang
creators_name: Biermann, Michael
title: Concept verification of the JASMINE astrometric plate analysis
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F63
note: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: The Japan Astrometry Satellite Mission for Infrared Exploration (JASMINE) aims at high-precision astrometry in the near-infrared wavelengths (1.0–1.6 μm). This mission focuses on the Galactic center region, obscured by interstellar dust in optical wavelengths. JASMINE’s observation strategy differs from other missions and must be verified via dedicated simulations. To verify the mission concept, we designed a simplified simulation, the JASMINE mini survey, covering three years with 100 orbits. As a simple case, the data obtained in a single satellite orbit are analyzed simultaneously (Plate Analysis). The observation model was made differentiable and implemented as a probabilistic model to make the best use of Stochastic Variational Inference. Model parameters converged to a certain solution, while the observation model contained more than 30,000 parameters. The estimated coordinates well represented the stellar motions expected from the ground truth. A typical positional error was estimated to be about 70 µas, consistent with the measurement error and the number of measurements. The present results validate parts of JASMINE’s mission concepts, leading to significant advancements in understanding the Galactic center.
date: 2024-07-25
date_type: published
publisher: SPIE
official_url: http://dx.doi.org/10.1117/12.3017291
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2310846
doi: 10.1117/12.3017291
isbn_13: 9781510675254
lyricists_name: Kawata, Daisuke
lyricists_id: DKAWA39
actors_name: Kawata, Daisuke
actors_id: DKAWA39
actors_role: owner
full_text_status: public
pres_type: paper
publication: Proceedings of SPIE - The International Society for Optical Engineering
volume: 13101
place_of_pub: Bellingham, WA, USA
pagerange: 131011R
event_title: SPIE Astronomical Telescopes and Instrumentation 2024
event_location: Yokohama, Japan
event_dates: 16 Jun 2024 - 22 Jun 2024
issn: 0277-786X
book_title: Software and Cyberinfrastructure for Astronomy VIII
editors_name: Ibsen, Jorge
editors_name: Chiozzi, Gianluca
citation:        Ohsawa, Ryou;    Kawata, Daisuke;    Kamizuka, Takafumi;    Yamada, Yoshiyuki;    Löffler, Wolfgang;    Biermann, Michael;      (2024)    Concept verification of the JASMINE astrometric plate analysis.                     In: Ibsen, Jorge and Chiozzi, Gianluca, (eds.) Software and Cyberinfrastructure for Astronomy VIII.  (pp. 131011R).  SPIE: Bellingham, WA, USA.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10197435/1/131011R.pdf