Messier 81

Query : Messier 81

Basic data :
M 81 -- Seyfert 2 Galaxy
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: 		X (2012ApJS,2E,...), Rad (2020A&A,BWE,...), G (2014AJ,HIJASS,...), AGN (2011A&A,[VV2000c],...), QSO (2010A&A,[VV2006],...), * (BD,HD,...), IR (IRAS,PSCz,...), GiG (K79,[CHM2007]), Sy2 (2013ApJS), LIN (2012ApJ), GiP (KPG), AG? (2020MNRAS), Opt (SDSS)
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) : 		09 55 33.1726556496 +69 03 55.062505368 (Optical) [ 0.0459 0.0494 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) : 		09 55 33.1720326510 +69 03 55.044431788 [ 0.0459 0.0494 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) : 		09 51 27.3000507858 +69 18 08.242423607 [ 0.0459 0.0494 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) : 		142.0918223605216 +40.9000561069047 [ 0.0459 0.0494 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 : 		0.278 -0.072 [0.059 0.063 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) -47 [21] / z(~) -0.00016 [0.00007] / cz -47.0 [21.0]
   (Opt) C 2022ApJS..261....6K
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): 		0.1495 [0.06] A 2020yCat.1350....0G
Syntax of morphological type is : mtype quality bibcode
  • mtype : Hubble morphological class (spirals, ellipticals, etc)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the morphological type reference
Morphological type: 		SA C 2019MNRAS.488..590B
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin): 		21.38 10.23 157 (Opt) D 2003A&A...412...45P
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 (11) :
B 7.89 [0.03] D 2007ApJS..173..185G
V 6.94 [0.03] D 2007ApJS..173..185G
G 15.130657 [0.009088] C 2020yCat.1350....0G
J 4.760 [0.016] C 2006AJ....131.1163S
H 4.090 [0.018] C 2006AJ....131.1163S
K 3.831 [0.018] C 2006AJ....131.1163S
u (AB) 11.673 [0.002] C 2009ApJS..182..543A
g (AB) 9.635 [0.002] C 2009ApJS..182..543A
r (AB) 8.708 [0.004] C 2009ApJS..182..543A
i (AB) 8.373 [0.005] C 2009ApJS..182..543A
z (AB) 7.921 [0.002] C 2009ApJS..182..543A
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
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
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 ) :

: 7
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

: 963 		: 53 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (68) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

M 81 LEDA 28630 SDSS J095533.16+690355.1 [CAB95] IRAS F09514+6918
BD+69 543 2MASX J09553318+6903549 SDSS J095533.14+690355.2 [CHM2007] HDC 552 J095533.18+6903549
BWE 0951+6918 MCG+12-10-010 SPB 115 [CHM2007] LDC 842 J095533.18+6903549
2E 2195 NAME M 81* SWIFT J0955.5+6907 [DML87] 630
2E 0951.4+6918 NAME Bode's Galaxy SWIFT J0955.9+6905 [LB2005] NGC 3031 X1
1ES 0951+69.3 NGC 3031 TC 714 [M98c] 095127.6+691813
EXO 0951.3+6917 NVSS J095533+690355 TGSSADR J095533.1+690354 [NKB95] N3031
GB6 B0951+6918 PSCz Q09514+6918 UGC 5318 [VDD93] 99
87GB 095125.0+691806 RBS 808 UZC J095535.5+690352 [VV2000c] J095533.2+690355
HD 85534 RFC J0955+6903 WN B0951.4+6918 [VV2003c] J095533.2+690355
HIJASS J0955+69A RGB J0955+690 2XMM J095533.1+690355 [VV2006] J095533.2+690355
ICRF J095533.1+690355 RORF 0951+693 XMMSL1 J095534.3+690350 [VV2010] J095533.2+690355
IERS B0951+693 1RXP J095532.8+690354 Z 333-7 [VV98c] J095533.2+690355
IRAS F09514+6918 RX J095532+69038 Z 0951.4+6918 [ZEH2003] RX J0955.5+6903 1
IRAS 09514+6918 RX J0955.5+6903 [B93] 13 Gaia DR2 1070470609404512512
K79 28A RX J095533.4+690353 [BAG2012] 149.0083+69.0811 Gaia DR3 1070470609404512512
KPG 218a 1RXS J095534.7+690338 [BAZ94] 3 Gaia DR1 1070470605109644672

References (593 between 2019 and 2024) (Total 4450)
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 : 14    distance : 16    PLX : 1    PM : 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 (14) 

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |cz |  -47          21      |C (    )|s , ,Opt ,           |          |       |  |2022ApJS..261....6K|

distance (16) 

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |    3.39    Mpc |  -0.30       +0.30    |T-F     |2020ApJ...902..145K|

plx (1) 

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 |   0.1495  :   0.06       |2020yCat.1350....0G|

pm (2) 

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |   +0.278[    0.059]|   -0.072[    0.063]|ICRS|2020yCat.1350....0G|
Observing logs


herschel : 17    ISO : 2    IUE : 13    XMM : 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 (17)

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   0.0011   731  m81                                  09 55 33.17  +69 03 55.0  KPGT_cwilso01_1    PacsLineSpec        3995  2011-05-15T20:43:05  1342220981  get Herschel/PACS observation #1342220981                           PSpecL-M81 -OIII - map                                                                                                
    2   0.0011   731  m81                                  09 55 33.17  +69 03 55.0  KPGT_cwilso01_1    PacsLineSpec        5593  2011-05-15T18:19:42  1342220979  get Herschel/PACS observation #1342220979                           PSpecL-M81 -OI - map                                                                                                  
    3   0.0011   731  m81                                  09 55 33.17  +69 03 55.0  KPGT_cwilso01_1    PacsLineSpec        4004  2011-05-15T17:10:51  1342220978  get Herschel/PACS observation #1342220978                           PSpecL-M81 -NII - map                                                                                                 
    4   0.0011   731  m81                                  09 55 33.17  +69 03 55.0  KPGT_cwilso01_1    PacsLineSpec        2298  2011-05-15T14:44:11  1342220974  get Herschel/PACS observation #1342220974                           PSpecL-M81 -CII - map                                                                                                 
    5   0.0011   557  m81                                  09 55 33.17  +69 03 55.0  KPGT_cwilso01_1    SpireSpectrometer  10236  2010-11-21T22:50:38  1342209851                          get Herschel/SPIRE observation #1342209851   SSpec-m81                                                                                                             
    6   0.0011   156  m81                                  09 55 33.17  +69 03 55.0  SDP_cwilso01_3     PacsPhoto          11104  2009-10-17T18:09:26  1342186086  get Herschel/PACS observation #1342186086                           PPhoto-m81  -copy                                                                                                     
    7   0.0011   156  m81                                  09 55 33.17  +69 03 55.0  SDP_cwilso01_3     PacsPhoto          11104  2009-10-17T15:03:17  1342186085  get Herschel/PACS observation #1342186085                           PPhoto-m81                                                                                                            
    8   0.0011   145  m81                                  09 55 33.17  +69 03 55.0  SDP_cwilso01_3     SpirePhoto          5042  2009-10-06T19:54:40  1342185538                          get Herschel/SPIRE observation #1342185538   SPhoto-m81                                                                                                            
    9   4.0291   731  m81 arm strip-1                      09 55 14.02  +69 07 34.0  KPGT_cwilso01_1    PacsLineSpec        2749  2011-05-15T19:55:06  1342220980  get Herschel/PACS observation #1342220980                           PSpecL-M81 -NII - arm strip                                                                                           
   10   4.0291   731  m81 arm strip-1                      09 55 14.02  +69 07 34.0  KPGT_cwilso01_1    PacsLineSpec        1621  2011-05-15T16:41:40  1342220977  get Herschel/PACS observation #1342220977                           PSpecL-M81 -CII - arm strip                                                                                           
   11   4.0291   731  m81 arm strip-1                      09 55 14.02  +69 07 34.0  KPGT_cwilso01_1    PacsLineSpec        1621  2011-05-15T16:12:31  1342220976  get Herschel/PACS observation #1342220976                           PSpecL-M81 -OI(63) - arm strip                                                                                        
   12   4.0291   731  m81 arm strip-1                      09 55 14.02  +69 07 34.0  KPGT_cwilso01_1    PacsLineSpec        2745  2011-05-15T15:24:39  1342220975  get Herschel/PACS observation #1342220975                           PSpecL-M81 -OIII - arm strip                                                                                          
   13  33.0338   911  M81-TD1                              09 59 42.00  +68 39 40.0  OT1_kknierma_1     PacsLineSpec       11071  2011-11-11T10:19:43  1342232259  get Herschel/PACS observation #1342232259                           PSpecL-0000 -M81-TD1 - 0000

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     0.007  15100376  PHT40    2.47    8.95  M 81                            1996-04-16T07:02:25   1132      5949  24"x24"             148.8884  +69.0652      RGENZEL  +    MPEXGAL2
    2     0.023  18000405  LWS01   43.01  195.88  M81                             1996-05-15T01:55:52   1100      7091  84" D               148.8891  +69.0655      HSMITH   +    GALXISM

iue (13) 

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |NGC 3031        :            |EGBMP|80|F FES 01117 2|        |790804 142600|002400| |   |G|N/A                 |*|1996IUEML.C......0I|

xmm (2)

The 3 columns in color are computed by VizieR, and are not part of the original data.
B/xmm/xmmlog
Post annotation 		XMM-Newton Observation Log (XMM-Newton Science Operation Center, 2012) [ReadMe+ftp]
2002yCat....102009X

The XMM-Newton Observation log (2024-03-25)[image/fits] (17645 rows)		img(gal)
start AladinLite 
 Full      _r        Obsno     PropDate   Object                           RAJ2000    DEJ2000           Obs0          ObsDur Image  PPSp   FITS XSAlink
        arcmin                    s                                         deg        deg              s              s                             


    1    0.0152  0111800301  2002-10-08  M81                             148.88751  +69.06528  2001-04-22T07:44:00     8027 N      PPSp  0111800301 Y
    2    0.0152  0111800101  2002-10-08  M81                             148.88751  +69.06528  2001-04-22T10:04:34   132663 FITS       PPSp  0111800101 Y

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : Messier 81

Link by name to the catalogue in VizieR :

BD+69 543 BWE 0951+6918 2E 2195 HD 85534 IERS B0951+693
IRAS F09514+6918 IRAS 09514+6918 KPG 218a 2MASX J09553318+6903549 NGC 3031
NVSS J095533+690355 1RXS J095534.7+690338 SDSS J095533.16+690355.1 SDSS J095533.14+690355.2 UGC 5318
WN B0951.4+6918 [DML87] 630 Gaia DR2 1070470609404512512 Gaia DR3 1070470609404512512 Gaia DR1 1070470605109644672

Search by coordinates in Vizier (radius: 5 arcsec)

Indications mainly about references on other documents
Notes (1) :

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 .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object