Significant Flux Increase of Blazar PKS 0405-385 Detected by ASAS-SN
ATel #12609; X. Dai (OU), K. Z. Stanek, C. S. Kochanek (OSU), B. J. Shappee (IfA-Hawaii), and ASAS-SN Collaboration
on 24 Mar 2019; 18:17 UT
Credential Certification: Krzysztof Stanek (stanek.32@osu.edu)
Subjects: Optical, Blazar
ASAS-SN multi-site telescopes detected a significant flux increase of PKS 0405-385
(RA: 04:06:59.0353 DEC: -38:26:28.042), a gamma-ray loud and flat
spectrum radio source at z=1.285. The optical flux changes by a
factor of 2.5 from g=16.7 on 2019-03-13 to 15.7 on 2019-03-24 during
the past 10 days. During the past 200 days, the source was frequently
detected at the magnitude limits of ASAS-SN telescopes ranging from
g=16.2 to g=17.8. Compared to these measurements, PKS 0405-385 is
brighter by a factor of 7. Multi-wavelength/messenger observations of
the source are encouraged.
Full ASAS-SN g-band light curve of this source is available at this
link.
We thank Las Cumbres Observatory and its staff for their continued
support of ASAS-SN. ASAS-SN is funded in part by the Gordon and Betty
Moore Foundation through grant GBMF5490 to the Ohio State University,
NSF grant AST-1515927, the Mt. Cuba Astronomical Foundation, the
Center for Cosmology and AstroParticle Physics (CCAPP) at OSU, the
Chinese Academy of Sciences South America Center for Astronomy
(CASSACA), and the Villum Fonden (Denmark).