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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): 16729/22002
    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): 2793/6514
    Number of objects (OH): 3782/4661
    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 category954 (23.6%)9 (56.2%)5 (27.8%)712 (45.0%)6 (40.0%)-1 76 (45.0%)
    Young Stellar Objects434 (21.3%)7 (70.0%)4 (33.3%)329 (37.0%)6 (54.5%)-1 45 (43.7%)
    Radio-emitting sources533 (29.7%)6 (66.7%)2 (28.6%)384 (44.0%)4 (50.0%)-1 57 (47.9%)
    Dense cores383 (40.1%)6 (85.7%)3 (60.0%)344 (52.4%)3 (60.0%)-1 50 (53.8%)
    HII regions316 (28.5%)4 (66.7%)3 (60.0%)269 (39.5%)4 (80.0%)-1 51 (45.5%)
    Molecular clouds304 (26.5%)4 (66.7%)1 (33.3%)242 (45.6%)2 (66.7%)-1 35 (46.1%)
    Outflow sources118 (69.4%)0 0 113 (83.1%)0 ( 0.0%)-1 6 (85.7%)
    Other SFR sources20 (19.4%)1 (100.0%)0 13 (56.5%)1 (100.0%)-1 6 (85.7%)
    Maser objects related to EVOLVED category27 ( 3.8%)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 ( 6.9%)0 0 5 (83.3%)0 -1 0 ( 0.0%)
    Other stars15 ( 5.8%)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 sources341 (18.2%)19 (48.7%)4 (66.7%)68 (73.1%)13 (61.9%)-1 1 (33.3%)
    Unknown source types80 (13.9%)0 ( 0.0%)0 38 (88.4%)0 -1 0 ( 0.0%)
    Extragalactic sources8 ( 7.0%)0 0 4 (33.3%)0 -1 1 (50.0%)
    No associated SIMBAD sources253 (21.4%)19 (51.4%)4 (66.7%)26 (68.4%)13 (61.9%)-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}} & 954 (23.6\%) & 0 & 712 (45.0\%) & 5 (27.8\%) & 6 (40.0\%) & 9 (56.2\%) & 76 (45.0\%) \\
    Young Stellar Objects & \texttt{YSO, Candidate\_YSO} & 434 (21.3\%) & 0 & 329 (37.0\%) & 4 (33.3\%) & 6 (54.5\%) & 7 (70.0\%) & 45 (43.7\%) \\
    Radio-emitting sources & \texttt{Radio, Radio(sub-mm), Radio(mm), } & 533 (29.7\%) & 0 & 384 (44.0\%) & 2 (28.6\%) & 4 (50.0\%) & 6 (66.7\%) & 57 (47.9\%) \\
    & \texttt{Radio(cm)} & & & & \\
    Dense cores & \texttt{denseCore} & 383 (40.1\%) & 0 & 344 (52.4\%) & 3 (60.0\%) & 3 (60.0\%) & 6 (85.7\%) & 50 (53.8\%) \\
    HII regions & \texttt{HII, Bubble} & 316 (28.5\%) & 0 & 269 (39.5\%) & 3 (60.0\%) & 4 (80.0\%) & 4 (66.7\%) & 51 (45.5\%) \\
    Molecular clouds & \texttt{MolCld, PartOfCloud, Cloud, DkNeb} & 304 (26.5\%) & 0 & 242 (45.6\%) & 1 (33.3\%) & 2 (66.7\%) & 4 (66.7\%) & 35 (46.1\%) \\
    Outflow sources & \texttt{Outflow, outflow?} & 118 (69.4\%) & 0 & 113 (83.1\%) & 0 & 0 ( 0.0\%) & 0 & 6 (85.7\%) \\
    Other SFR sources & \texttt{Region, SFregion, ISM, HH} & 20 (19.4\%) & 0 & 13 (56.5\%) & 0 & 1 (100.0\%) & 1 (100.0\%) & 6 (85.7\%) \\
    \multicolumn{2}{l}{\textbf{Maser objects related to EVOLVED category}} & 27 ( 3.8\%) & 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 ( 6.9\%) & 0 & 5 (83.3\%) & 0 & 0 & 0 & 0 ( 0.0\%) \\
    & \texttt{Candidate\_post-AGB*} & & & & \\
    Other stars & \fnsymbol{footnote} & 15 ( 5.8\%) & 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}} & 341 (18.2\%) & 0 & 68 (73.1\%) & 4 (66.7\%) & 13 (61.9\%) & 19 (48.7\%) & 1 (33.3\%) \\
    Unknown source types & \texttt{Maser, X, Unknown, multiple\_object, } & 80 (13.9\%) & 0 & 38 (88.4\%) & 0 & 0 & 0 ( 0.0\%) & 0 ( 0.0\%) \\
    & \texttt{EmObj} & & & & \\
    Extragalactic sources & \texttt{StarburstG, GinPair, Seyfert, } & 8 ( 7.0\%) & 0 & 4 (33.3\%) & 0 & 0 & 0 & 1 (50.0\%) \\
    & \texttt{AGN, Galaxy, EmG, LSB\_G, HII\_G, } & & & & \\
    No associated SIMBAD sources & & 253 (21.4\%) & 0 & 26 (68.4\%) & 4 (66.7\%) & 13 (61.9\%) & 19 (51.4\%) & 0



    target type Objects (total)SFREVOLVEDMIXEDOTHER
    targeted690/5300 (11.5) 416/2559 (14.0) 6/684 (0.9) 0/0 (0) 162/921 (15.0)
    blind678/22 (96.9) 420/2 (99.5) 22/1 (95.7) 0/0 (0) 100/11 (90.1)
    • 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