2003MNRAS.339..748M -
Mon. Not. R. Astron. Soc., 339, 748-756 (2003/March-1)
On the stability of the 421-d periodicity in A0538-66.
McGOWAN K.E. and CHARLES P.A.
Abstract (from CDS):
In this paper we analyse 70 years of archival Harvard and Schmidt plate data of the 16.6-d Be X-ray binary A0538-66 in order to search for the presence of the long-term period of 420.82±0.79 d found in MACHO photometry. We find evidence for a long-term period of 421.29±0.95 d in the archival data, and examine its stability. We also combine the archival and MACHO data sets in order to improve the accuracy of the orbital period determination, using a cycle-counting analysis to refine its value to 16.6460±0.0004 d. We also test the model proposed in our previous paper with observations documented in the literature for A0538-66 from 1980 to 1995, constraining the system inclination to be i > 74.9 deg. ± 6.5 deg. .
(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases
Other object types:
HXB
(),
X
(RX,1A,...),
V*
(GRV,RGC,...),
*
(DCMC,WEB,...),
Psr
(2013MNRAS,LXP),
SB*
(SBC9),
gam
(INTREF),
NIR
(2MASS),
MIR
(SSTISAGE1C)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
(redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
[error] : error of the corresponding value displayed before
(wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or '∼'(unknown)
quality : flag of quality ( A=best quality -> E=worst quality, ∼=unknown quality)
References (287 between 1850 and 2024) (Total 287)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow
new references on this object
Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description . Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .
To bookmark this query, right click on this link: simbad:objects in 2003MNRAS.339..748M and select 'bookmark this link' or equivalent in the popup menu