CDS

2005A&A...444L...5R

Query : 2005A&A...444L...5R

2005A&A...444L...5R - Astronomy and Astrophysics, volume 444, L5-8 (2005/12-2)

Stellar p-mode oscillations signal in Procyon A from MOST data.

REGULO C. and ROCA CORTES T.

Abstract (from CDS):

Recently, Matthews et al. (2004Natur.430...51M) claim a null detection of p-mode oscillations in Procyon A from 32 days of nearly continuous photometric satellite-based observations (MOST). They did not even find evidence in the Fourier amplitude spectrum of Procyon of the uniform frequency spacing signature that solar-like stars acoustic spectrum must show according to asymptotic theory. However, re-analysing his data, we have found a clear evidence of signal fully compatible with what is expected from p-mode oscillations in Procyon A. Using the method developed in Regulo & Roca Cortes (2002A&A...396..745R), that allows the analysis of stellar oscillations in the acoustic power spectrum of solar-like stars when the signal is buried in noise, we have found a frequency spacing in the power spectrum of the data of 54.5µHz, that agrees well with the expectations of the theory of stellar oscillation as well as with previous estimations from ground-based observations. Moreover, our method allows the recovery of the power spectrum of the signal from the knowledge of the frequency spacing present in the data, which yields clear peaks that can be identified as acoustic p-modes. Nonetheless, as the frequency spacing coincides with the second sub-multiple of the orbital frequency of the satellite (164.34µHz) the above findings must be taken with caution.

Abstract Copyright: ∼

Journal keyword(s): stars: oscillations - stars: individual: Procyon

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023 		#notes
1 * alf CMi SB* 07 39 18.11950 +05 13 29.9552 0.82 0.79 0.37 -0.05 -0.28 F5IV-V+DQZ 1851 0

Query : 2005A&A...444L...5R

Basic data :
* alf CMi -- Spectroscopic Binary
Origin of the objects types :

(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: 		* (2021MNRAS,*,...), PM* (2002A&A,Ci,...), X (1AXG,2E,...), ** (2001AJ,**,...), UV (2EUVE,EUVE,...), SB* (2004A&A,SBC7,...), IR (IRAS,IRC,...), V* (CSV,NSV), Ro* (1996ApJ), Rad (1C), NIR (2MASS)
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)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		07 39 18.11950 +05 13 29.9552 (Optical) [ 18.05 10.08 90 ] A 2007A&A...474..653V
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)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		07 36 41.13745 +05 21 17.4205 [ 18.05 10.08 90 ]
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)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		213.70224138 +13.01939682 [ 18.05 10.08 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr : 		-714.59 -1036.80 [2.06 1.15 0] A 2007A&A...474..653V
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)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz : 		V(km/s) -4.505280 [0.020786] / z(spectroscopic) -0.000015 [0.000000] / cz -4.51 [0.02]
   (NIR) A 2020AJ....160..120J
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas): 		284.56 [1.26] A 2007A&A...474..653V
Spectral type is made of 3 parts: %coding is composed of 4 parts :
  • the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities;
  • a quality letter: A=best quality→E=worst quality, {� } =unknown quality %
  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type: 		F5IV-V+DQZ C 2013yCat....1.2023S
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (8) :
U 0.82 [~] C 2002yCat.2237....0D
B 0.79 [~] C 2002yCat.2237....0D
V 0.37 [~] C 2002yCat.2237....0D
R -0.05 [~] C 2002yCat.2237....0D
I -0.28 [~] C 2002yCat.2237....0D
J -0.39 [~] C 2002yCat.2237....0D
H -0.56 [~] C 2002yCat.2237....0D
K -0.65 [~] C 2002yCat.2237....0D
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (79) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* alf CMi EUVE J0739+05.2 LSPM J0739+0513 1RXS J073918.3+051332
* 10 CMi FAUST 1387 LTT 12053 SAO 115756
* alf CMi A FK5 291 2MASS J07391805+0513298 SBC7 317
** SHB 1A GALAH 141101003801339 N30 1726 SBC9 467
AG+05 1072 GC 10277 NAME Procyon SKY# 14100
AKARI-FIS-V1 J0739178+051322 GCRV 5099 NAME Procyon A SPOCS 352
AP J07391805+0513298 GEN# +1.00061421 NLTT 18229 SV* ZI 646
ASCC 1030621 GJ 280.0 NSV 3672 TD1 10647
1AXG J073918+0514 GJ 280 8pc 285.93A TIC 280310048
BD+05 1739 GJ 280 A PLX 1805 TYC 187-2184-1
1C 12.01 HD 61421 PMC 90-93 212 UBV 7352
CCDM J07393+0514A HIC 37279 PM 07367+0521 USNO-B1.0 0952-00146563
Ci 20 432 HIP 37279 PPM 153068 USNO 825
CSI+05 1739 1 HR 2943 RAFGL 1161 uvby98 100061421
CSI+05 1739 5 IDS 07341+0529 A 2RE J0739+051 WDS J07393+0514A
CSV 100884 IRAS 07366+0520 2RE J073918+051351 WEB 7381
2E 1849 IRC +10170 RE J0739+051 Zkh 106
2E 0736.6+0520 JP11 1576 RE J073917+051339 [HFE83] 530
1ES 0736+05.3 LFT 541 ROT 1234 [TSA98] J073919.85+051356.36
2EUVE J0739+05.2 LHS 233 RX J0739.3+0513

References (1851 between 1850 and 2023) (Total 1851)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements


velocities : 31    V* : 1    ROT : 10    Fe_H : 124    PLX : 2    PM : 3    MK : 6   

   

Observing logs


herschel : 2    IUE : 67    XMM : 2   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : * alf CMi

Link by name to the catalogue in VizieR :

AG+05 1072 AKARI-FIS-V1 J0739178+051322 AP J07391805+0513298 BD+05 1739 CCDM J07393+0514A
2E 1849 EUVE J0739+05.2 FAUST 1387 FK5 291 GALAH 141101003801339
GJ 280.0 GJ 280 GJ 280 A HD 61421 HIC 37279
HIP 37279 HR 2943 IRAS 07366+0520 IRC +10170 LHS 233
LSPM J0739+0513 2MASS J07391805+0513298 NLTT 18229 NSV 3672 PLX 1805
PPM 153068 RAFGL 1161 2RE J0739+051 2RE J073918+051351 1RXS J073918.3+051332
SAO 115756 TD1 10647 TYC 187-2184-1 USNO-B1.0 0952-00146563 uvby98 100061421
WDS J07393+0514A

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2023.09.25-16:11:40

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