EM* LkCa 15

Query : EM* LkCa 15

Basic data :
EM* LkCa 15 -- Orion Variable
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: 		* (TYC,EPIC,...), Y*O (2010ApJS), TT* (1999AJ), ** (**,WDS), Em* (EM*,HBC), smm (JCMTSE,JCMTSF), MIR (AKARI,WISE), IR (IRAS,PSCz), Or* (2017ARep), Y*? (2018A&A), V* (V*), 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) : 		04 39 17.7911622816 +22 21 03.390090984 (Optical) [ 0.0247 0.0138 90 ] A 2020yCat.1350....0G
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
FK5 coord. (ep=J2000 eq=2000) : 		04 39 17.7931112235 +22 21 03.374550695 [ 0.0247 0.0138 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
FK4 coord. (ep=B1950 eq=1950) : 		04 36 18.3522723418 +22 15 12.477707201 [ 0.0247 0.0138 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) : 		176.6896738758663 -15.9817366430146 [ 0.0247 0.0138 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 : 		10.573 -17.527 [0.031 0.021 90] A 2020yCat.1350....0G
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) 17.650 [0.030] / z(~) 0.000059 [0.000000] / cz 17.65 [0.03]
   (Opt) A 2012ApJ...745..119N
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): 		6.3619 [0.0264] A 2020yCat.1350....0G
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: 		K5:Ve D 1986AJ.....91..575H
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 (7) :
B 13.01 [0.40] D 2000A&A...355L..27H
V 12.03 [0.23] D 2000A&A...355L..27H
R 11.61 [~] E 2003yCat.1289....0Z
G 11.591105 [0.008781] C 2020yCat.1350....0G
J 9.424 [0.020] C 2003yCat.2246....0C
H 8.600 [0.018] C 2003yCat.2246....0C
K 8.163 [0.018] C 2003yCat.2246....0C
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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within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
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
Some important notes on this object about identifications and objects associations.
notes:

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2
The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 3 		: 2809 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (24) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

TYC 1278-193-1 GSC 01278-00193 2MASS J04391779+2221034 WDS J04393+2221A
** LKCA 15Aa HBC 419 PSCz Q04363+2215 WDS J04393+2221Aa
** KSA 25A IRAS 04363+2215 SSTtau 043917.7+222103 WISE J043917.79+222103.3
AKARI-IRC-V1 J0439178+222103 IRAS F04363+2215 TIC 118681038 WISE J043917.80+222103.3
EM* LkCa 15 JCMTSE J043917.7+222102 UCAC2 39617972 Gaia DR3 144936836795636864
EPIC 247520207 JCMTSF J043917.7+222102 V* V1079 Tau Gaia DR2 144936836795636864

References (191 between 2019 and 2024) (Total 690)
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
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements


velocities : 1    V* : 2    distance : 2    ROT : 3    Fe_H : 1    PLX : 2    PM : 2    MK : 2   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

velocities (1) 

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |   17.650       0.030  |A (    )|s , ,Opt ,           |          |       |  |2012ApJ...745..119N|

v* (2) 

 |     vartyp     |    Vmax     p     Vmin    |   period   | epoch (JD)   |D/rt %|     reference     |
 -----------------------------------------------------------------------------------------------------
 |ROT             |                           |   5.7795   |              |      |2020AJ....159..273R|

distance (2) 

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |  157.186   pc  |  -0.6523     +0.6523  |paral   |2020yCat.1350....0G|

rot (3) 

 |  Vsini  [  err   ] (mes)|Q|     reference     |
 -------------------------------------------------
 |  15.4   [  2.3   ] (   )| |2021ApJ...921...53L|

fe_h (1) 

 | Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 ------------------------------------------------------------
 |  4156 4.11  |        |         |     |2021ApJ...921...53L|

plx (2) 

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 |   6.3619  :   0.0264     |2020yCat.1350....0G|

pm (2) 

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |  +10.573[    0.031]|  -17.527[    0.021]|ICRS|2020yCat.1350....0G|

mk (2) 

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |K5.5                                |2014ApJ...786...97H|
Observing logs


herschel : 13    ISO : 2   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

herschel (13)

The 1 column in color are computed by VizieR, and are not part of the original data.

Note: (see also the postcard server)

VI/139/herschel
Post annotation 		Herschel Observation Log (Herschel Science Centre, 2013) [ReadMe+ftp]
2013yCat.6139....0H

The Herschel Observation Log (37093 rows)		img(gal)
start AladinLite 
 Full      _r     OD   Target                                 RAJ2000      DEJ2000    Proposal           AOT                 Dur          Start            ObsId       PACS        HIFI        SPIRE    Label                                                                                                                 
        arcmin                                               "h:m:s"      "d:m:s"                                            s             s                                                                                                                                                                                 


    1   0.0025   685  LkCa_15                              04 39 17.80  +22 21 03.5  KPOT_bdent_1       PacsPhoto            276  2011-03-30T09:38:54  1342217473  get Herschel/PACS observation #1342217473                           Phot -- LkCa_15 - green - 110                                                                                         
    2   0.0025   685  LkCa_15                              04 39 17.80  +22 21 03.5  KPOT_bdent_1       PacsPhoto            276  2011-03-30T09:33:15  1342217472  get Herschel/PACS observation #1342217472                           Phot -- LkCa_15 - green - 70                                                                                          
    3   0.0025   685  LkCa_15                              04 39 17.80  +22 21 03.5  KPOT_bdent_1       PacsPhoto            276  2011-03-30T09:27:36  1342217471  get Herschel/PACS observation #1342217471                           Phot -- LkCa_15 - blue - 110                                                                                          
    4   0.0025   685  LkCa_15                              04 39 17.80  +22 21 03.5  KPOT_bdent_1       PacsPhoto            276  2011-03-30T09:21:57  1342217470  get Herschel/PACS observation #1342217470                           Phot -- LkCa_15 - blue - 70                                                                                           
    5   0.0025   273  LkCa_15                              04 39 17.80  +22 21 03.5  KPOT_bdent_1       PacsLineSpec        1252  2010-02-11T18:08:06  1342190387  get Herschel/PACS observation #1342190387                           LkCa_15_Ib_OI63                                                                                                       
    6   0.0025   273  LkCa_15                              04 39 17.80  +22 21 03.5  KPOT_bdent_1       PacsRangeSpec       5141  2010-02-11T16:40:19  1342190386  get Herschel/PACS observation #1342190386                           LkCa_15_Ib_CII_OI145_H2O                                                                                              
    7   0.0027  1390  LkCa 15                              04 39 17.80  +22 21 03.5  OT1_cespaill_1     SpireSpectrometer    676  2013-03-04T08:01:56  1342265848                          get Herschel/SPIRE observation #1342265848   SSpec -LkCa 15                                                                                                        
    8   0.0027  1010  LkCa 15                              04 39 17.80  +22 21 03.5  OT1_cespaill_2     PacsRangeSpec       1135  2012-02-17T17:06:07  1342240149  get Herschel/PACS observation #1342240149                           PSpecR -LkCa 15                                                                                                       
    9   0.0027  1010  LkCa 15                              04 39 17.80  +22 21 03.5  OT1_ebergin_4      PacsRangeSpec       8320  2012-02-17T14:45:15  1342240148  get Herschel/PACS observation #1342240148                           LkCa 15 HD                                                                                                            
   10   0.0027   814  LkCa15-1                             04 39 17.80  +22 21 03.5  KPOT_bdent_1       PacsLineSpec        6628  2011-08-05T19:09:49  1342225798  get Herschel/PACS observation #1342225798                           LkCa15_Ia_point_OI63                                                                                                  
   11   0.0032   476  LkCa15                               04 39 17.78  +22 21 03.5  KPGT_evandish_1    HifiPoint          14868  2010-09-02T07:49:14  1342203939              get Herschel/HIFI observation #1342203939               H2O 312-303 -LkCa15                                                                                                   
   12   0.0032   475  LkCa15                               04 39 17.78  +22 21 03.5  KPGT_evandish_1    HifiPoint          23787  2010-08-31T18:47:27  1342204003              get Herschel/HIFI observation #1342204003               PSP2_H2O 110-101 -LkCa15                                                                                              
   13   0.0032   463  LkCa15                               04 39 17.78  +22 21 03.5  KPGT_evandish_1    HifiPoint           2201  2010-08-20T06:36:00  1342203257              get Herschel/HIFI observation #1342203257               CO 10-9 H2O 312-221 -LkCa15

iso (2)

The 2 columns in color are computed by VizieR, and are not part of the original data.
Note: Quick-look images of the data, and specific documentation, are accessible by clicking on the TDT observation identifier
VI/111/isolog
Post annotation 		ISO Observation Log (ISO Data Centre, 2004) [ReadMe+ftp]

*The ISO Observation Log[image] (36737 rows) (Note)		img(gal)
start AladinLite 
 Full      _r        TDT    AOT    minLam  maxLam  Target                                 oStart         oLen    recno   FOV                  RAJ2000   DEJ2000 cal  ObsID    abs  PropID  
        arcmin                      um      um                                             s             s                                     deg       deg                              


    1     0.033  66900806  SWS02    6.86   28.41  LKCA 15                         1997-09-15T01:41:17   2050     28221  27"x20"             069.8236  +22.3512      GBLAKE   +    DISKS_H2
    2     0.987  66900816  SWS02    6.86   17.13  LKCA 15-OFF                     1997-09-15T02:16:17    814     28222  27"x14"             069.8236  +22.3345      GBLAKE   +    DISKS_H2

External archives :

Data at NED - NASA/IPAC Extragalactic Database : EM* LkCa 15

Link by name to the catalogue in VizieR :

TYC 1278-193-1 AKARI-IRC-V1 J0439178+222103 GSC 01278-00193 IRAS 04363+2215 IRAS F04363+2215
2MASS J04391779+2221034 UCAC2 39617972 V* V1079 Tau WDS J04393+2221A WDS J04393+2221Aa
WISE J043917.79+222103.3 WISE J043917.80+222103.3 Gaia DR3 144936836795636864 Gaia DR2 144936836795636864

Search by coordinates in Vizier (radius: 5 arcsec)

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