SgrV4641
Galactic Microquasar - Homepage
Position:
RA 18 19 21.64 Decl. -25 24 25.1
Very
interesting Galactic Object, this microquasar is
again in activity after the peculiar behaviour in 2002 (event observed on 2002 July 7)
The
VSNET Group have been follow the outburst in May-July
2002 and a peculiar scenario is coming out.
Large
field image of the positions of SGRV4641 taken in 2002 July with a 200 mm lens
unfiltered on a 35 mm film.
The
arrow show the approximate position of the Galactic Microquasar again in activity!!!!!!!!!!!
My
observation in 2003
SGRV4641 20030808.906 <10.0 TSc
SGRV4641 20030808.909 <10.5 TSc
SGRV4641 20030817.833 <12.5v TSc
SGRV4641 20030818.854 12.9v TSc
SRGV4641 20030821.818 10.8v TSc
flash for 2 second
SGRV4641 20030821.865 <12.9v TSc
SGRV4641 20030821.880 <12.9v TSc
SRGV4641 20030823.882 <13.0v TSc
SGRV4641 20030824.872 13.5v TSc
SGRV4641 20030824.875 12.9v TSc
SGRV4641 20030824.889 13.5v TSc
Important
Link:
VSNET
(Variable Stars Network – Kyoto Japan)
Papers
by Uemura et al.
Get the preprint!
Get the preprint [PDF]!
Get the preprint (for the 2002
event)!
Get the preprint (2002 event) [PDF]!
Useful links
2004 Observations
After the alert of
R. Stubbing in Vsnet-alert, I Can also confirm the
outburst of SGR V4641. In alleged images is visible the long flash about 20
sec taken on 2004 07 04.99 UT with an 8 cm refractor f/5 and Canon 10D, 20 sec
of exposition.
The p magnitude of the "star" in the image is about 11.5
Observations in AAVSO format:
1813-25BV4641SGR2453191.4924 13.15P 131 SFI
1813-25BV4641SGR2453191.4951 11.52P 109 SFI
1813-25BV4641SGR2453191.4951
11.80V 109 SFI
1813-25BV4641SGR2453191.4986 12.52P 131 SFI
1813-25BV4641SGR2453191.4986 12.90V 131 SFI
Toni Scarmato
Astronomical Association
San Costantino di Briatico (VV) Calabria – Italy
http://toniscarmato.interfree.it/comet1.html