Euclid: High-precision imaging astrometry and photometry from Early Release Observations: I. Internal kinematics of NGC 6397 by combining Euclid and Gaia data
The instruments at the focus of the Euclid space observatory offer superb, diffraction-limited imaging over an unprecedented (from space) wide field of view of 0.57 deg2. This exquisite image quality has the potential to produce high-precision astrometry for point sources once the undersampling of E...
Gespeichert in:
| Hauptverfasser: | , , , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
6 December 2024
|
| In: |
Astronomy and astrophysics
Year: 2024, Jahrgang: 692, Pages: 1-23 |
| ISSN: | 1432-0746 |
| DOI: | 10.1051/0004-6361/202452295 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1051/0004-6361/202452295 Verlag, kostenfrei, Volltext: https://www.aanda.org/articles/aa/abs/2024/12/aa52295-24/aa52295-24.html 
|
| Verfasserangaben: | M. Libralato, M. Schirmer, K. Jahnke, Z. Sakr, G. Seidel und weitere 173 |
MARC
| LEADER | 00000naa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1930437099 | ||
| 003 | DE-627 | ||
| 005 | 20250714133858.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 250714s2024 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1051/0004-6361/202452295 |2 doi | |
| 035 | |a (DE-627)1930437099 | ||
| 035 | |a (DE-599)KXP1930437099 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Libralato, Mattia |e VerfasserIn |0 (DE-588)1371479879 |0 (DE-627)1930437900 |4 aut | |
| 245 | 1 | 0 | |a Euclid: High-precision imaging astrometry and photometry from Early Release Observations |b I. Internal kinematics of NGC 6397 by combining Euclid and Gaia data |c M. Libralato, M. Schirmer, K. Jahnke, Z. Sakr, G. Seidel und weitere 173 |
| 264 | 1 | |c 6 December 2024 | |
| 300 | |b Illustrationen | ||
| 300 | |a 23 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 14.07.2025 | ||
| 520 | |a The instruments at the focus of the Euclid space observatory offer superb, diffraction-limited imaging over an unprecedented (from space) wide field of view of 0.57 deg2. This exquisite image quality has the potential to produce high-precision astrometry for point sources once the undersampling of Euclid’s cameras is taken into account by means of accurate, effective point spread function (ePSF) modelling. We present a complex, detailed workflow to simultaneously solve for the geometric distortion (GD) and model the undersampled ePSFs of the Euclid detectors. Our procedure was successfully developed and tested with data from the Early Release Observations (ERO) programme focused on the nearby globular cluster NGC 6397. Our final one-dimensional astrometric precision for a well-measured star just below saturation is 0.7 mas (0.007 pixel) for the Visible Instrument (VIS) and 3 mas (0.01 pixel) for the Near-Infrared Spectrometer and Photometer (NISP). Finally, we present a specific scientific application of this high-precision astrometry: the combination of Euclid and Gaia data to compute proper motions and study the internal kinematics of NGC 6397. Future work, when more data become available, will allow for a better characterisation of the ePSFs and GD corrections that are derived here, along with assessment of their temporal stability, and their dependencies on the spectral energy distribution of the sources as seen through the wide-band filters of Euclid. | ||
| 700 | 1 | |a Schirmer, Mischa |d 1973- |e VerfasserIn |0 (DE-588)128855088 |0 (DE-627)383659418 |0 (DE-576)297365002 |4 aut | |
| 700 | 1 | |a Jahnke, Knud |e VerfasserIn |0 (DE-588)1200875141 |0 (DE-627)1683870255 |4 aut | |
| 700 | 1 | |a Sakr, Ziad |e VerfasserIn |0 (DE-588)1296375315 |0 (DE-627)1852803258 |4 aut | |
| 700 | 1 | |a Seidel, Gregor |d 1977- |e VerfasserIn |0 (DE-588)139967559 |0 (DE-627)703521993 |0 (DE-576)314004769 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Astronomy and astrophysics |d Les Ulis : EDP Sciences, 1969 |g 692(2024) vom: Dez., Artikel-ID A96, Seite 1-23 |h Online-Ressource |w (DE-627)253390222 |w (DE-600)1458466-9 |w (DE-576)072283351 |x 1432-0746 |7 nnas |a Euclid: High-precision imaging astrometry and photometry from Early Release Observations I. Internal kinematics of NGC 6397 by combining Euclid and Gaia data |
| 773 | 1 | 8 | |g volume:692 |g year:2024 |g month:12 |g elocationid:A96 |g pages:1-23 |g extent:23 |a Euclid: High-precision imaging astrometry and photometry from Early Release Observations I. Internal kinematics of NGC 6397 by combining Euclid and Gaia data |
| 856 | 4 | 0 | |u https://doi.org/10.1051/0004-6361/202452295 |x Verlag |x Resolving-System |z kostenfrei |3 Volltext |
| 856 | 4 | 0 | |u https://www.aanda.org/articles/aa/abs/2024/12/aa52295-24/aa52295-24.html |x Verlag |z kostenfrei |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20250714 | ||
| 993 | |a Article | ||
| 994 | |a 2024 | ||
| 998 | |g 139967559 |a Seidel, Gregor |m 139967559:Seidel, Gregor |d 130000 |e 130000PS139967559 |k 0/130000/ |p 152 | ||
| 998 | |g 1296375315 |a Sakr, Ziad |m 1296375315:Sakr, Ziad |p 143 | ||
| 998 | |g 1200875141 |a Jahnke, Knud |m 1200875141:Jahnke, Knud |d 130000 |e 130000PJ1200875141 |k 0/130000/ |p 86 | ||
| 999 | |a KXP-PPN1930437099 |e 4746011192 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"name":{"displayForm":["M. Libralato, M. Schirmer, K. Jahnke, Z. Sakr, G. Seidel und weitere 173"]},"language":["eng"],"note":["Gesehen am 14.07.2025"],"recId":"1930437099","person":[{"display":"Libralato, Mattia","given":"Mattia","role":"aut","family":"Libralato"},{"given":"Mischa","display":"Schirmer, Mischa","family":"Schirmer","role":"aut"},{"given":"Knud","display":"Jahnke, Knud","role":"aut","family":"Jahnke"},{"given":"Ziad","display":"Sakr, Ziad","role":"aut","family":"Sakr"},{"given":"Gregor","display":"Seidel, Gregor","family":"Seidel","role":"aut"}],"physDesc":[{"extent":"23 S.","noteIll":"Illustrationen"}],"id":{"eki":["1930437099"],"doi":["10.1051/0004-6361/202452295"]},"type":{"bibl":"article-journal","media":"Online-Ressource"},"title":[{"subtitle":"I. Internal kinematics of NGC 6397 by combining Euclid and Gaia data","title":"Euclid: High-precision imaging astrometry and photometry from Early Release Observations","title_sort":"Euclid: High-precision imaging astrometry and photometry from Early Release Observations"}],"origin":[{"dateIssuedKey":"2024","dateIssuedDisp":"6 December 2024"}],"relHost":[{"origin":[{"publisherPlace":"Les Ulis ; Berlin ; Heidelberg","dateIssuedKey":"1969","dateIssuedDisp":"1969-","publisher":"EDP Sciences ; Springer"}],"title":[{"subtitle":"an international weekly journal","title":"Astronomy and astrophysics","title_sort":"Astronomy and astrophysics"}],"physDesc":[{"extent":"Online-Ressource"}],"id":{"zdb":["1458466-9"],"issn":["1432-0746"],"eki":["253390222"]},"recId":"253390222","name":{"displayForm":["European Southern Observatory (ESO)"]},"titleAlt":[{"title":"Astronomy & astrophysics"},{"title":"a European journal"}],"corporate":[{"role":"isb","display":"European Southern Observatory"}],"disp":"Euclid: High-precision imaging astrometry and photometry from Early Release Observations I. Internal kinematics of NGC 6397 by combining Euclid and Gaia dataAstronomy and astrophysics","type":{"media":"Online-Ressource","bibl":"periodical"},"note":["Gesehen am 21.06.2024","Erscheint 36mal jährlich in 12 Bänden zu je 3 Ausgaben","Fortsetzung der Druck-Ausgabe"],"pubHistory":["1.1969 -"],"language":["eng"],"part":{"volume":"692","year":"2024","text":"692(2024) vom: Dez., Artikel-ID A96, Seite 1-23","pages":"1-23","extent":"23"}}]} | ||
| SRT | |a LIBRALATOMEUCLIDHIGH6202 | ||