J/AJ/135/83 MACHO LMC first overtone RR Lyrae (Clement+, 2008)
The distance of the first overtone RR Lyrae variables in the MACHO Large
Magellanic Cloud database: a new method to correct for the effects of crowding.
Clement C.M., Xu X., Muzzin A.V.
<Astron. J., 135, 83-91 (2008)>
=2008AJ....135...83C 2008AJ....135...83C
ADC_Keywords: Magellanic Clouds ; Stars, variable ; Magnitudes
Keywords: galaxies: distances and redshifts - Magellanic clouds -
stars: variables: other
Abstract:
Previous studies have indicated that many of the RR Lyrae variables in
the LMC have properties similar to those in the Galactic globular
cluster M3. Assuming that the M3 RR Lyrae variables follow the same
relationships among period, temperature, amplitude, and Fourier phase
parameter phi31 as their LMC counterparts, we have used the M3
phi31-logP relation to identify the M3-like unevolved first
overtone RR Lyrae variables in 16 MACHO fields near the LMC bar.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table4.dat 62 51 Parameters of the uncrowded, unevolved
M3-like RR1 variables
--------------------------------------------------------------------------------
See also:
II/247 : Variable Stars in the Large Magellanic Clouds (MACHO, 2001)
J/ApJ/542/257 : MACHO LMC first-overtone RR Lyrae (Alcock+, 2000)
J/AJ/127/334 : MACHO LMC first-overtone RR Lyrae variables (Alcock+, 2004)
J/ApJ/598/597 : Frequency analysis of fundamental-mode RR Lyrae (Alcock+, 2003)
http://macho.anu.edu.au/ : MACHO Home Page
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 A12 --- Name MACHO star identification
14- 21 F8.6 d Per Period
23- 27 F5.2 mag <Vmag> Mean 6-order Fourier series fit V band magnitude
29- 33 F5.2 mag <Rmag> Mean 6-order Fourier series fit R band magnitude
35- 39 F5.2 mag E(V) The V band extinction
41- 45 F5.2 mag V0mag Extinction corrected V band magnitude
47- 51 F5.2 mag V0(vdM) Extinction corrected V band magnitude,
according to the LMC viewing angle derived by
van der Marel & Cioni (2001AJ....122.1807V 2001AJ....122.1807V)
53- 57 F5.2 mag V0(Nik) Extinction corrected V band magnitude,
according to the LMC viewing angle derived by
Nikolaev et al. (2004ApJ...601..260N 2004ApJ...601..260N)
59- 62 F4.2 --- Weight Probability star lies between the envelope
lines in Figure 3
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 11-Feb-2011