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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): 10100/14105
    Number of observations (OH): 11737/16144
    Number of observations (SiO): 4040/5713
    Number of observations (CH3OH I): 3361/7513
    Number of observations (CH3OH II): 7823/10236
    Number of observations (NH3):
    Number of observations (H2CO):
    		Detected / Non-Detected
    Number of objects (H2O): 2793/6516
    Number of objects (OH): 3703/4832
    Number of objects (SiO): 1971/2329
    Number of objects (CH3OH I): 1430/1976
    Number of objects (CH3OH II): 1367/5322
    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 category1002 (24.5%)9 (56.2%)4 (25.0%)750 (46.1%)5 (38.5%)-1 80 (45.5%)
    Young Stellar Objects450 (21.8%)7 (70.0%)3 (30.0%)341 (37.7%)5 (55.6%)-1 48 (44.4%)
    Radio-emitting sources565 (30.8%)7 (70.0%)2 (28.6%)409 (45.4%)3 (42.9%)-1 60 (48.4%)
    Dense cores409 (41.5%)5 (83.3%)2 (66.7%)367 (53.7%)3 (75.0%)-1 54 (54.5%)
    HII regions340 (30.0%)6 (75.0%)4 (66.7%)288 (41.1%)4 (80.0%)-1 55 (46.6%)
    Molecular clouds325 (27.7%)4 (66.7%)1 (33.3%)259 (47.0%)2 (66.7%)-1 38 (46.9%)
    Outflow sources126 (70.8%)0 0 120 (83.9%)0 ( 0.0%)-1 6 (85.7%)
    Other SFR sources21 (20.2%)1 (100.0%)0 12 (54.5%)1 (100.0%)-1 6 (85.7%)
    Maser objects related to EVOLVED category27 ( 3.6%)0 0 7 (63.6%)0 -1 0 ( 0.0%)
    Stars5 ( 2.3%)0 0 0 ( 0.0%)0 -1 0
    Mira stars0 ( 0.0%)0 0 0 0 -1 0
    OH/IR stars0 ( 0.0%)0 0 0 0 -1 0
    AGB/Post-AGB stars9 ( 6.6%)0 0 5 (83.3%)0 -1 0 ( 0.0%)
    Other stars15 ( 5.6%)0 0 1 (33.3%)0 -1 0
    Star clusters1 (11.1%)0 0 1 (100.0%)0 -1 0
    Planetary nebulas0 ( 0.0%)0 0 0 ( 0.0%)0 -1 0 ( 0.0%)
    Supernova Remnats0 0 0 0 0 -1 0
    Other sources293 (16.5%)14 (51.9%)2 (40.0%)62 (71.3%)10 (55.6%)-1 1 (33.3%)
    Unknown source types83 (14.3%)0 ( 0.0%)0 40 (88.9%)0 -1 0 ( 0.0%)
    Extragalactic sources11 ( 9.3%)2 (66.7%)0 ( 0.0%)6 (40.0%)1 (50.0%)-1 1 (50.0%)
    No associated SIMBAD sources199 (18.4%)12 (54.5%)2 (50.0%)16 (59.3%)9 (56.2%)-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*}
    \multicolumn{2}{l}{\textbf{Maser objects related to SFR+MIX category}} & 1002 (24.5\%) & 0 & 750 (46.1\%) & 4 (25.0\%) & 5 (38.5\%) & 9 (56.2\%) & 80 (45.5\%) \\
    Young Stellar Objects & \texttt{YSO, Candidate\_YSO} & 450 (21.8\%) & 0 & 341 (37.7\%) & 3 (30.0\%) & 5 (55.6\%) & 7 (70.0\%) & 48 (44.4\%) \\
    Radio-emitting sources & \texttt{Radio, Radio(sub-mm), Radio(mm), } & 565 (30.8\%) & 0 & 409 (45.4\%) & 2 (28.6\%) & 3 (42.9\%) & 7 (70.0\%) & 60 (48.4\%) \\
    & \texttt{Radio(cm)} & & & & \\
    Dense cores & \texttt{denseCore} & 409 (41.5\%) & 0 & 367 (53.7\%) & 2 (66.7\%) & 3 (75.0\%) & 5 (83.3\%) & 54 (54.5\%) \\
    HII regions & \texttt{HII, Bubble} & 340 (30.0\%) & 0 & 288 (41.1\%) & 4 (66.7\%) & 4 (80.0\%) & 6 (75.0\%) & 55 (46.6\%) \\
    Molecular clouds & \texttt{MolCld, PartOfCloud, Cloud, DkNeb} & 325 (27.7\%) & 0 & 259 (47.0\%) & 1 (33.3\%) & 2 (66.7\%) & 4 (66.7\%) & 38 (46.9\%) \\
    Outflow sources & \texttt{Outflow, outflow?} & 126 (70.8\%) & 0 & 120 (83.9\%) & 0 & 0 ( 0.0\%) & 0 & 6 (85.7\%) \\
    Other SFR sources & \texttt{Region, SFregion, ISM, HH} & 21 (20.2\%) & 0 & 12 (54.5\%) & 0 & 1 (100.0\%) & 1 (100.0\%) & 6 (85.7\%) \\
    \multicolumn{2}{l}{\textbf{Maser objects related to EVOLVED category}} & 27 ( 3.6\%) & 0 & 7 (63.6\%) & 0 & 0 & 0 & 0 ( 0.0\%) \\
    Stars & \texttt{Star} & 5 ( 2.3\%) & 0 & 0 ( 0.0\%) & 0 & 0 & 0 & 0 \\
    Mira stars & \texttt{Mira, Candidate\_Mi*} & 0 ( 0.0\%) & 0 & 0 & 0 & 0 & 0 & 0 \\
    OH/IR stars & \texttt{OH/IR} & 0 ( 0.0\%) & 0 & 0 & 0 & 0 & 0 & 0 \\
    AGB/Post-AGB stars & \texttt{AGB*, Candidate\_AGB*, post-AGB*, } & 9 ( 6.6\%) & 0 & 5 (83.3\%) & 0 & 0 & 0 & 0 ( 0.0\%) \\
    & \texttt{Candidate\_post-AGB*} & & & & \\
    Other stars & \fnsymbol{footnote} & 15 ( 5.6\%) & 0 & 1 (33.3\%) & 0 & 0 & 0 & 0 \\
    Star clusters & \texttt{OpCl, Cl*, Cl*?} & 1 (11.1\%) & 0 & 1 (100.0\%) & 0 & 0 & 0 & 0 \\
    Planetary nebulas & \texttt{PN, PN?, RfNeb, BrNeb, *inNeb} & 0 ( 0.0\%) & 0 & 0 ( 0.0\%) & 0 & 0 & 0 & 0 ( 0.0\%) \\
    Supernova Remnats & \texttt{SN, SNR, SNR?} & 0 & 0 & 0 & 0 & 0 & 0 & 0 \\
    \multicolumn{2}{l}{\textbf{Other sources}} & 293 (16.5\%) & 0 & 62 (71.3\%) & 2 (40.0\%) & 10 (55.6\%) & 14 (51.9\%) & 1 (33.3\%) \\
    Unknown source types & \texttt{Maser, X, Unknown, multiple\_object, } & 83 (14.3\%) & 0 & 40 (88.9\%) & 0 & 0 & 0 ( 0.0\%) & 0 ( 0.0\%) \\
    & \texttt{EmObj} & & & & \\
    Extragalactic sources & \texttt{StarburstG, GinPair, Seyfert, } & 11 ( 9.3\%) & 0 & 6 (40.0\%) & 0 ( 0.0\%) & 1 (50.0\%) & 2 (66.7\%) & 1 (50.0\%) \\
    & \texttt{AGN, Galaxy, EmG, LSB\_G, HII\_G, } & & & & \\
    No associated SIMBAD sources & & 199 (18.4\%) & 0 & 16 (59.3\%) & 2 (50.0\%) & 9 (56.2\%) & 12 (54.5\%) & 0



    target type Objects (total)SFREVOLVEDMIXEDOTHER
    targeted690/5300 (11.5) 446/2562 (14.8) 6/720 (0.8) 0/0 (0) 130/872 (13.0)
    blind678/22 (96.9) 432/2 (99.5) 22/1 (95.7) 0/0 (0) 73/11 (86.9)
    • X
    DSS colored
    		2MASS colored
    		WISE colored
    PACS color (70-160 um)
    		SPIRE color (250-500 um)
    		GLIMPSE 360
    SDSS color
    		IRAC color I1,I2,I4
    		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