Table · dataset · 2026
Photometric properties of UV sources near IC 4329A
Listed in IVOA Registry (Virtual Observatory)
We present high-resolution near-ultraviolet (NUV) and far-ultraviolet (FUV) deep imaging of the field around the Seyfert galaxy IC 4329A based on five observations performed with the Ultra-Violet Imaging Telescope (UVIT) onboard AstroSat.
Description
The long exposures of 82.9ks in the NUV (N245M; {lambda}mean=2447{AA}; {Delta}{lambda}=270{AA}) and 92.2ks in the FUV (F154W;{lambda}mean=1541{AA}; {Delta}{lambda}=380{AA}) bands constitute the deepest observations with 5{sigma} detection limits of AB magnitudes mNUV=26.2 and mFUV=25.7.
Leveraging UVIT's excellent angular resolution (FWHM~1.2"-1.8", we performed a detailed analysis of the IC 4329A field and detected (above the 5{sigma} significance level) a total of 4437 and 456 sources in the NUV and FUV bands, respectively. A large number of these detected sources were previously unknown. We performed astrometry and photometry on all detected sources.
Read the rest (2 more)
By cross-matching our catalog with the Gaia-DR3 and XMM-Newton DR12 catalogs, we found 651 optical and 97 X-ray counterparts of our sources. Additionally, we explored the UV variability of point sources, identifying 28 NUV sources as variable with a significance above the 2.5{sigma} level. Of these, only three sources exhibited variability in the FUV band.
Utilizing the NUV and Gaia fluxes, we determined that two previously cataloged white dwarf candidates are misclassified. Furthermore, we highlight galaxies with atypical morphology, including ring-like structures, multiple compact central sources, bifurcating spiral arms, and so on. Follow- up optical spectroscopy and multiwavelength observations are imperative to further investigate the nature of the sources within this field.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/169/188 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2025AJ....169..188G ui.adsabs.harvard.edu/abs/2025AJ....169..188G ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/aj/169/188 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Imaging 75%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/aj/169/188 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:uv | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:x-ray | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].local:modality:imaging | enrichment · IVOA Registry | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |