Table · dataset · 2021
RI photometry of blazars S5 0716+714 and 3C 273
Listed in IVOA Registry (Virtual Observatory)
We present the photometric observations of blazars S5 0716+714 and 3C 273 with high temporal resolution (30-60s) in the I or R bands.
Description
The observations were performed with a 1.02m optical telescope from 2007 March 7 to 2012 May 16. The F-test, one-way analysis of variance (ANOVA) test, and z-transformed discrete correlation function (ZDCF) cross-correlation zero lag test are used to search for intra-day variability (IDV).
Four and five reliable IDVs survive three tests for S5 0716+714 and 3C 273, respectively. IDVs are found for S5 0716+714 and 3C 273. A flare on 2008 May 8 has {Delta}I~0.06+/-0.01mag in a duration of 0.54hr for S5 0716+714.
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A flare on 2011 May 10 shows {Delta}R~0.05+/-0.01mag in a duration of 0.40hr for 3C 273. Sharp dips appear on 2011 May 9 for 3C 273 and show {Delta}R~0.05+/-0.01mag. Under the assumptions that the IDV is tightly connected to black hole mass, M*, and that the flare durations are representative of the minimum characteristic timescales, we can estimate upper bounds to M*.
In the case of the Kerr black holes, M*<~10^8.91^M_{sun}_ and M*<~10^9.02^M_{sun}_ are given for S5 0716+714 and 3C 273, respectively. These mass measurements are consistent with those measurements reported in the literature. Also, we discuss the origins of optical variations found in this work.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/880/155 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2019ApJ...880..155L ui.adsabs.harvard.edu/abs/2019ApJ...880..155L ↗
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/apj/880/155 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/apj/880/155 | 13 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:infrared | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| 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 |