Browse this table... |
SBORBITCAT - Spectroscopic Binary Orbits Ninth Catalog |
HEASARC Archive |
The Ninth Catalogue of Spectroscopic Binary Orbits (Version April 2005) Pourbaix D., Tokovinin A.A, Batten A.H., Fekel F.C., Hartkopf W.I., Levato H., Morell N.I., Torres G., Udry S. <Astron. Astrophys. 424, 727 (2004)> =2004A&A...424..727P
System_Number
The SB9 system number [1-2418]: this is identical to the SB8
number for values less than or equal to 1469.
B1900_Name
The name of the system, based on the B1900 position (for
backward compatibility with SB8) truncated to 0.1 minutes of time in
RA and arcminutes in declination.
RA
The Right Ascension of the system in the selected equinox. This
was given in J2000 coordinates to a precision of 0.01 seconds of time in
the original version.
Dec
The Declination of the system in the selected equinox. This
was given in J2000 coordinates to a precision of 0.1 arcseconds in
the original version.
LII
The Galactic Longitude of the system.
BII
The Galactic Latitude of the system
Component
The component identifier, used for higher multiplicity systems.
App_Mag_1
The apparent magnitude of component 1, in the filter band
specified by the app_mag_1_band parameter.
App_Mag_1_Band
The filter band in which the component 1 magnitude is
given: P, B, V, R or K.
App_Mag_2
The apparent magnitude of component 2, in the filter band
specified by the app_mag_2_band parameter.
App_Mag_2_Band
The filter band in which the component 2 magnitude is
given: P, B, V, R or K.
Spect_Type_1
The MK spectral type of component 1.
Spect_Type_2
The MK spectral type of component 2.
Name
The name of the system, using the Hipparcos Catalog (HIP)
identification when one exists.
Alt_Names
Other designations for the system, given in the form of a
comma-delimited list.
Orbit_Number
The orbit number for the selected binary system.
Period
The orbital period for the selected binary system, in days.
Period_Type
This parameter is a flag which is set to 'a' if the quoted
value for the period was assumed, i.e., fixed at the given value rather than
computed.
Period_Error
The mean error in the orbital period of the system, in days.
Reference_Time
The epoch for the computation of phases, usually the
time of a periastron passage (if the parameter periastron_time_flag is 0),
in JD.
Reference_Time_Type
This parameter is a flag which is set to 'a' if the
quoted value for the reference_time parameter was assumed, i.e., fixed at
the given value rather than computed.
Reference_Time_Error
The mean error in the reference_time parameter,
in days.
Reference_Time_Flag
This parameter is set to 0 if the reference epoch
corresponds to the time of periastron passage, and is > 0 to indicate that
it corresponds to the time of other phenomena, e.g., an eclipse.
Eccentricity
The orbital eccentricity of the spectroscopic binary
orbit.
Eccentricity_Type
This parameter is a flag which is set to 'a' if the
quoted value for the eccentricity was assumed, i.e., fixed at the given value
rather than computed, or to '>' to indicate that the error is large (larger
than the value itself).
Eccentricity_Error
The mean error in the orbital eccentricity.
Omega
The longitude of the orbital periastron, Omega, in degrees.
Omega_Type
This parameter is a flag which is set to 'a' if the quoted
value for the longitude of periastron was assumed, i.e., fixed at the given
value rather than computed.
Omega_Error
The mean error in Omega, in degrees.
Semi_Amplitude_1
The velocity semi-amplitude of the primary star, K1, in
km/s.
Semi_Amplitude_1_Flag
This parameter is a flag which is set to ':' if the
quoted value for the velocity semi-amplitude of the primary was considered
to be uncertain.
Semi_Amplitude_1_Type
This parameter is a flag which is set to 'a' if the
quoted value for the velocity semi-amplitude of the primary was assumed, i.e.,
fixed at the given value rather than computed, or to '>' to indicate that the
error is large (larger than the value itself).
Semi_Amplitude_1_Error
The mean error in the velocity semi-amplitude of
the primary, in km/s.
Semi_Amplitude_2
The velocity semi-amplitude of the secondary star, K2, in
km/s.
Semi_Amplitude_2_Flag
This parameter is a flag which is set to ':' if the
quoted value for the velocity semi-amplitude of the secondary was considered
to be uncertain.
Semi_Amplitude_2_Type
This parameter is a flag which is set to 'a' if the
quoted value for the velocity semi-amplitude of the secondary was assumed,
i.e., fixed at the given value rather than computed.
Semi_Amplitude_2_Error
The mean error in the velocity semi-amplitude of
the secondary, in km/s.
System_Velocity
The systemic radial velocity, V0, in km/s.
System_Velocity_Flag
This parameter is a flag which is set to ':' if the
quoted value for the system velocity was considered to be uncertain.
System_Velocity_Type
This parameter is a flag which is set to 'a' if the
quoted value for the radial velocity of the system V0 was assumed,
i.e., fixed at the given value rather than computed.
System_Velocity_Error
The mean error in the systemic radial velocity,
in km/s.
Radial_Velocity_1_Rms
The RMS residuals of the radial velocity of the
primary star, in km/s.
Radial_Velocity_2_Rms
The RMS residuals of the radial velocity of the
secondary star, in km/s.
Radial_Velocity_1_Obs
The mumber of observations of the radial velocity
of the primary star.
Radial_Velocity_2_Obs
The number of observations of the radial velocity
of the secondary star.
Orbit_Grade
The assessed grade or quality of the orbital solution,
ranging from 0 (`Poor') to 5 (`Definitive').
Ref_Orbit
The reference code, usually the ADS bibcode, of the publication
in which the orbit was presented.
Contributor
The contributor of the orbital solution.
Orbit_Note
A note concerning the details of the orbit determination,
or other comments about the system. In two cases (the entries for system_number
= 306, orbit_number = 1 and for system_number = 2126, orbit_number = 1), the
notes were so verbose that they have been truncated: the full notes are
available at ftp://cdsarc.u-strasbg.fr/pub/cats/V/122/notes.txt.gz
Class
The HEASARC Browse object classification, based on the spectral
type of the primary star in the binary system.