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Select maser type: H2O, OH, CH3OH_I, CH3OH_II, SiO

Actual statistics of known maser sources

  • Detected / Non-Detected
    Number of observations (H2O): 9697/14109
    Number of observations (OH): 9202/11381
    Number of observations (SiO): 4040/5713
    Number of observations (CH3OH I): 3361/7476
    Number of observations (CH3OH II): 7901/10525
    Number of observations (NH3):
    Number of observations (H2CO):
    		Detected / Non-Detected
    Number of objects (H2O): 2659/6533
    Number of objects (OH): 3949/4253
    Number of objects (SiO): 1971/2329
    Number of objects (CH3OH I): 1430/1976
    Number of objects (CH3OH II): 1392/5340
    Number of objects (NH3):
    Number of objects (H2CO):

  • Classification of objects with masers

    Total IRAS
    (12-100 um)    		HiGAL
    (70-500 um)    		ATLASGAL
    (870 um)    		Bolocam
    (1.1 mm)    		THOR
    (1-2 GHz)    		CORNISH
    (5 GHz)
    Maser objects related to SFR+MIX category1294 (49.5%)438 (40.3%)827 (51.5%)928 (55.4%)724 (46.5%)-1 71 (39.4%)
    Young Stellar Objects400 (31.3%)200 (33.7%)283 (33.5%)304 (35.4%)226 (27.1%)-1 41 (35.0%)
    Radio-emitting sources525 (40.2%)242 (40.1%)342 (41.2%)385 (45.0%)328 (36.0%)-1 55 (39.0%)
    Dense cores378 (43.2%)204 (47.6%)335 (44.3%)345 (44.5%)243 (37.0%)-1 53 (45.7%)
    HII regions243 (40.8%)186 (40.9%)185 (43.4%)195 (44.6%)153 (38.7%)-1 50 (39.1%)
    Molecular clouds291 (38.3%)155 (42.8%)243 (40.8%)257 (43.0%)188 (35.8%)-1 41 (45.1%)
    Outflow sources164 (66.9%)88 (69.8%)144 (68.9%)151 (70.6%)69 (71.1%)-1 7 (77.8%)
    Other SFR sources27 (35.5%)21 (36.8%)14 (63.6%)16 (61.5%)15 (39.5%)-1 7 (77.8%)
    Maser objects related to EVOLVED category49/241 (20.3%)5/170 ( 2.9%)16/31 (51.6%)13/17 (76.5%)7/11 (63.6%)-1/-2 0/1 ( 0.0%)
    Stars23 (36.5%)3 ( 8.3%)7 (87.5%)4 (80.0%)2 (66.7%)-1 0
    Mira stars18 (90.0%)1 (33.3%)6 (100.0%)7 (100.0%)4 (100.0%)-1 0
    OH/IR stars11 (29.7%)0 ( 0.0%)5 (50.0%)4 (100.0%)1 (100.0%)-1 0
    AGB/Post-AGB stars2 ( 7.7%)1 ( 4.2%)1 (33.3%)1 (100.0%)0 -1 0
    Other stars37 (25.9%)2 ( 2.2%)13 (92.9%)10 (90.9%)7 (77.8%)-1 0
    Star clusters1 (12.5%)0 ( 0.0%)0 0 0 ( 0.0%)-1 0
    Planetary nebulas1 ( 3.7%)1 ( 4.0%)0 ( 0.0%)0 0 -1 0 ( 0.0%)
    Supernova Remnats2 (50.0%)0 0 ( 0.0%)0 0 -1 0
    Other sources87 (15.7%)31 (49.2%)17 (54.8%)21 (63.6%)12 (52.2%)-1 1 (33.3%)
    Unknown source types12 (42.9%)3 (50.0%)3 (60.0%)3 (60.0%)1 (100.0%)-1 0
    Extragalactic sources23 (46.9%)21 (53.8%)4 (66.7%)4 (66.7%)3 (37.5%)-1 1 (33.3%)
    No associated SIMBAD sources52 (10.9%)7 (38.9%)10 (50.0%)14 (63.6%)8 (57.1%)-1 0


    \texttt{**, Symbiotic*, LPV*, Be*, Candidate\_LP*, },\texttt{RRLyr, C*, Candidate\_C*, Orion\_V*, },\texttt{SG*, Candidate\_SG*, V*, V*?, },\texttt{RedSG*, FUOr, Em*, Ae*, Candidate\_Ae*, },\texttt{brownD*, Candidate\_brownD*, S*, },\texttt{PulsV*RVTau, EB*, SB*, PM*, pMS*, },\texttt{HMXB, EB*Algol, BlueSG*, Candidate\_PulsV*WVi, },\texttt{Candidate\_RSG*, PulsV*delSct, },\texttt{TTau*}
    Maser objects related to SFR+MIX category & & 1294/1318 & 438/52 & 928/748 & 827/779 & 724/832 & 438/648 & 71/109 \\
    Young Stellar Objects & \texttt{YSO, Candidate\_YSO} & 400/879 & 13/10 & 304/554 & 283/563 & 226/608 & 200/393 & 41/76 \\
    Radio-emitting sources & \texttt{Radio, Radio(sub-mm), Radio(mm), } & 525/780 & 31/2 & 385/471 & 342/489 & 328/582 & 242/362 & 55/86 \\
    & \texttt{Radio(cm)} & & & & \\
    Dense cores & \texttt{denseCore} & 378/496 & 7/2 & 345/431 & 335/422 & 243/414 & 204/225 & 53/63 \\
    HII regions & \texttt{HII, Bubble} & 243/352 & 7/1 & 195/242 & 185/241 & 153/242 & 186/269 & 50/78 \\
    Molecular clouds & \texttt{MolCld, PartOfCloud, Cloud, DkNeb} & 291/468 & 10/3 & 257/341 & 243/352 & 188/337 & 155/207 & 41/50 \\
    Outflow sources & \texttt{Outflow, outflow?} & 164/81 & 0/0 & 151/63 & 144/65 & 69/28 & 88/38 & 7/2 \\
    Other SFR sources & \texttt{Region, SFregion, ISM, HH} & 27/49 & 1/0 & 16/10 & 14/8 & 15/23 & 21/36 & 7/2 \\
    \multicolumn{2}{l}{\textbf{Maser objects related to EVOLVED category}} & 49/192 & 33/59 & 13/4 & 16/15 & 7/4 & 5/165 & 0/1 \\
    Stars & \texttt{Star} & 23/40 & 17/10 & 4/1 & 7/1 & 2/1 & 3/33 & 0/0 \\
    Mira stars & \texttt{Mira, Candidate\_Mi*} & 18/2 & 17/1 & 7/0 & 6/0 & 4/0 & 1/2 & 0/0 \\
    OH/IR stars & \texttt{OH/IR} & 11/26 & 11/2 & 4/0 & 5/5 & 1/0 & 0/26 & 0/0 \\
    AGB/Post-AGB stars & \texttt{AGB*, Candidate\_AGB*, post-AGB*, } & 2/24 & 1/1 & 1/0 & 1/2 & 0/0 & 1/23 & 0/0 \\
    & \texttt{Candidate\_post-AGB*} & & & & \\
    Other stars & \fnsymbol{footnote} & 37/106 & 31/55 & 10/1 & 13/1 & 7/2 & 2/90 & 0/0 \\
    Star clusters & \texttt{OpCl, Cl*, Cl*?} & 1/7 & 1/4 & 0/0 & 0/0 & 0/1 & 0/7 & 0/0 \\
    Planetary nebulas & \texttt{PN, PN?, RfNeb, BrNeb, *inNeb} & 1/26 & 0/10 & 0/0 & 0/1 & 0/0 & 1/24 & 0/1 \\
    Supernova Remnats & \texttt{SN, SNR, SNR?} & 2/2 & 2/0 & 0/0 & 0/1 & 0/0 & 0/0 & 0/0 \\
    \multicolumn{2}{l}{\textbf{Other sources}} & 87/466 & 3/5 & 21/12 & 17/14 & 12/11 & 31/32 & 1/2 \\
    Unknown source types & \texttt{Maser, X, Unknown, multiple\_object, } & 12/16 & 2/1 & 3/2 & 3/2 & 1/0 & 3/3 & 0/0 \\
    & \texttt{EmObj} & & & & \\
    Extragalactic sources & \texttt{StarburstG, GinPair, Seyfert, } & 23/26 & 1/2 & 4/2 & 4/2 & 3/5 & 21/18 & 1/2 \\
    & \texttt{AGN, Galaxy, EmG, LSB\_G, HII\_G, } & & & & \\
    No associated SIMBAD sources & & 52/424 & 0/2 & 14/8 & 10/10 & 8/6 & 7/11 & 0/0



    target type Objects (total)SFREVOLVEDMIXEDOTHER
    targeted653/1976 (24.8) 493/1138 (30.2) 5/192 (2.5) 0/0 (0) 39/424 (8.4)
    blind777/0 (100.0) 224/0 (100.0) 44/0 (100.0) 0/0 (0) 13/0 (100.0)
    • X
    DSS colored
    		2MASS colored
    		WISE colored
    SDSS color
    		IRAC color I1,I2,I4
    		GLIMPSE 360
    PACS color (70-160 um)
    		SPIRE color (250-500 um)
    		NVSS (1.4GHz)
    ATLASGAL 870 um
    		ATLASGAL 870 um + Planck
    		Bolocam 1.1 mm
    UKIDSS K

    Download UKIDSS K FITS     		2MASS K

    Download 2MASS K FITS