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MCC18B - Detection of 84 GHz Class I Methanol Maser Emission toward NGC 253

  Interferometry data

Short title: McCarthy et el. (2018b)
Authors: McCarthy, Tiege P. Ellingsen, Simon P. Breen, Shari L. Voronkov, Maxim A. Chen, Xi
Journal: The Astrophysical Journal Letters, Volume 867, Issue 1, article id. L4, 7 pp. (2018).
Bibcode: 2018ApJ...867L...4M

Detection table from McCarthy et el. (2018b)

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ID Obs. RA Obs. Dec RA offset Dec offset l b Group id # Maser spot Source name Image Descr. Line Vpeak Fpeak ∫F dv Telescope RMS Beam PA Detection Class Dist. (parallax) Date
(J2000) (J2000) (mas) (mas) (deg.) (deg.) CH3OH (class I) (km/s) (Jy) (Jy*km/s) (mJy) (arcsec) (deg.) Yes/No (kpc)
1+00 47 33-25 17 1297.376394-87.962401G97.436-87.964
NGC 253 Image Descr 84 GHz (I); ATCA2.6006.4 x 4.9-77.1+CH3OH I GALAXY2018 July 27-30
+00 47 33.65-25 17 12.69750 mas-598.8 mas97.436795-87.9635911BNGC 25318730.2693 (50)
2+00 47 33-25 17 1297.376394-87.962401G97.464-87.964
NGC 25336 GHz (I); ATCA0.5006.4 x 4.9-77.1+CH3OH I GALAXY2018 July 27-30
+00 47 33.9-25 17 11.613500 mas401.2 mas97.464118-87.9637381NENGC 25321130961 (36)
+00 47 32-25 17 28-15000 mas-15998.8 mas97.227210-87.9648182SWNGC 253304271372 (46)
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  • Distribution of sources in all sky (l,b)

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  • Distribution of sources in all sky using Aladin

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  • Distribution of sources in IRAS color-color diagram

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    Original color diagram is taken form van der Veen & Habing (1987)

    Type Description
    I Oxygen-rich non-variable stars without circumstellar shells
    II Variable stars with "young" O-rich circumstellar shells
    IIIa Variable stars with more evolved O-rich circumstellar shells
    IIIb Variable stars with thick O-rich circumstellar shells
    IV Variable stars with very thick O-rich circumstellar shells
    V Planetary nebulae and non- variable stars with very cool circumstellar shells
    VIa Variable stars with relatively cold dust at large distances; a significant part of the stars is carbon-rich
    VIb Variable stars with relatively hot dust close to the star and relatively cold dust at large distances; Some of the objects have proven to be O-rich
    VII Variable stars with more evolved C-rich circumstellar shells
    VIII Different sort of objects

  • Distribution of the detection velocities versus galactic longitude from MCC18B

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    Longitude-Velocity Map is taken form Dame, Hartmann & Thaddeus (2001)

  • Distribution of sources from MCC18B in (l,b) histograms



    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

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    2MASS K

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