J/AJ/170/84ivo://CDS.VizieR/J/AJ/170/84CDSBaek H.Cho S.-H.Kim J.Son S.-M.Yoon D.-H.Suh K.-W.2026-06-08T08:46:13Z2026-05-28T15:47:35ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frastrophysical-masersradio-astronomyinterstellar-masersinterferometrymorgan-keenan-classificationmolecular-physicsradial-velocitySimultaneous observations of 19 H_2_O and SiO maser and thermal lines were performed toward 155 M-type oxygen-rich (O-rich) AGB stars. We used the upgraded four-band (22/43/86/129GHz) wide receiving system of the Korean VLBI Network (KVN). The 155 O-rich stars composed of 50 semiregulars (SRs), 55 Miras, and 50 OH/IR stars were selected based on previous KVN H2O/SiO detected sources. Both H_2_O and SiO masers were detected in 23 stars among 50 SRs, 50 stars among 55 Miras, and 24 stars among 50 OH/IRs, respectively. Out of 50 SRs, H_2_O-only masers, without corresponding SiO maser detection, were observed in four stars. In contrast, no H_2_O-only masers were detected in any of the 55 Mira or 50 OH/IR stars, which differs from the pattern seen with SiO-only masers. Interestingly, in the 50 SRs, the SiO v=1, J=2-1 maser was detected more than the SiO v=1, J=1-0 maser despite requiring a higher excitation energy. The 28 SiO v=0, J=1-0, 2-1, 3-2 lines were detected more frequently at higher rotational transitions, especially in the SRs and Miras. The HCN and SiS were detected from 11 and 3 stars, respectively. For our observational results, we performed statistical analysis on the intensity ratio variations among H_2_O and various SiO masers, chemical environments, and wind kinematics. The characteristics of these property variations were investigated in the IRAS two-color diagram in relation to their evolutionary stages.2025AJ....170...84Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/84CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/gcvs : General Catalogue of Variable Stars (Samus+, 2007-2017)J/A+AS/97/729 : JHKL'M Observations of O-Rich late-type star (Le Bertre 1993)J/A+A/329/219 : 28SiO in O-rich evolved stars (Pardo+ 1998)J/A+A/403/993 : Revised HIP periods for long-period variables (Knapp+, 2003)J/ApJS/165/360 : SiO maser emission toward 10 late-type stars (Kang+, 2006)J/AJ/144/129 : Properties of 83 known stellar SiO maser sources (Cho+, 2012)J/A+A/546/A16 : 22-GHz water maser clouds (Richards+, 2012)J/AJ/145/22 : Simultaneous SiO and H2O maser observations (Kim+, 2013)J/A+A/565/A127 : SiO masers v=1,2,3 for 4 AGB (Desmurs+, 2014)J/AJ/147/22 : Simultaneous SiO and H2O maser observations. IV. (Kim+, 2014)J/ApJS/211/15 : SiO & H2O maser surv. toward AGB & post-AGB stars (Yoon+, 2014)J/A+A/644/A45 : R Crt and RT Vir Medicina spectra (Brand+, 2020)J/ApJS/253/44 : Surv. of SiO maser emission in oxygen-rich stars (Rizzo+, 2021)J/A+A/660/A94 : Obs. properties of the ATOMIUM project (Gottlieb+, 2022)J/A+A/681/A50 : ATOMIUM. Molecular inventory (Wallstrom+, 2024)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/170/84https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/170/84http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/170/84https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/170/84https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/170/84http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/170/84GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/170/84/table1 (Observed target sources list)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/170/84/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/170/84/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/170/84/table1?GETtext/xml+votable180.050000true0.8394208355.681119440.0055555555555555566/592 631 676 1079 1482 1619 1889 1986 2031 2528 2937 2990 3446 3491 3640 4290 4355 4472 4614 4892 5574 5647 6007 6161 7119 7619 7631 8532 8603 8926 9074 9785 10167 10570 10879 11519 11747 12556 12833 12909 12963 13050 13236 13666 13813 13845 14048 14306 14336 14399 14415 14428 14453 14530 14550 14657 14685 14811 14834 14968 15044 15105 15492 15620 15640 16147 16594 17716 18364 18998 19293 20626 21241 21376 21549 21647 21777 22556 23327 23394 23471 23488 24151 24448 24453 24800 25246 25544 25553 25986 26070 26180 26327 26345 28188 28826 28879 28888-28889 28998 29058 29096 29269 29430 29474 29476 30069 30087 30159 30256 30333 30402 30405 30434 30449 30497 30543 30594 30602 30614 30618 30625 30640 30654 30661 30666 30693 30733 30795 30856 31231 31292 31837 31849 32259 32527 32621 36311 36655 39916 39933 40246 40422 40533 42831 42895 43890 44018 44198 44546 45009 48097 48301 48715https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/170/84?format=asciiOpticalRadiodefaultJ/AJ/170/84/table1Observed target sources listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSimbadSimbad column added by the CDSmeta.ref.urlcharNumNumbermeta.idintNameSource identifiermeta.id;meta.maincharTypeSource type (1)src.classcharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainSpTypeSpectral typesrc.spTypecharPer[43/1995]? Variability perioddsrc.varfloatnullableRVel[-151.6/148.8] Radial velocity of the central starkm/sspect.dopplerVelocfloatl_TA-SiOLimit flag on TA-SiOmeta.code.error;phot.antennaTempcharTA-SiO[0.01/60.77] The SiO J=1-0, {nu}=1 peak antenna temperature (2)Kphot.antennaTempfloatl_TA-H2OLimit flag on TA-H2Ometa.code.error;phot.antennaTempcharTA-H2O[0.02/31.25] The H_2_O peak antenna temperature (2)Kphot.antennaTempfloatRefReference code (3)meta.refcharJ/AJ/170/84/table8Peak flux densitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNum[1/155] Numbermeta.idintNameSource identifiermeta.id;meta.maincharEpochEpoch of observation for NV Aur (G1)time.epochnullableH2O[0.57/605.98]? The H_2_O peak flux densityJyphot.flux.density;em.radio.12-30GHz;stat.maxfloatnullable30SiO[0.34/17.18]? The ^30^SiO J=1-0, {nu}=0 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullable29SiO(1-0)v0[0.37/78.48]? The ^29^SiO J=1-0, {nu}=0 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullableSiO(1-0)v0[0.22/4.36]? The SiO J=1-0, {nu}=0 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullableSiO(1-0)v1[0.37/1435.39]? The SiO J=1-0, {nu}=1 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullableSiO(1-0)v2[0.37/1269.5]? The SiO J=1-0, {nu}=2 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullableSiO(1-0)v3[0.25/27.36]? The SiO J=1-0, {nu}=3 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullable29SiO(2-1)v0[0.43/30.94]? The ^29^SiO J=2-1, {nu}=0 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullableSiO(2-1)v0[0.27/43.06]? The SiO J=2-1, {nu}=0 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullableSiO(2-1)v1[0.67/1051.99]? The SiO J=2-1, {nu}=1 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullableSiO(2-1)v2[0.62/5.62]? The SiO J=2-1, {nu}=2 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullableSiO(3-2)v0[0.38/29.25]? The SiO J=3-2, {nu}=0 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullableSiO(3-2)v1[0.76/562.04]? The SiO J=3-2, {nu}=1 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullableSiO(3-2)v2[0.76/227.65]? The SiO J=3-2, {nu}=2 peak flux densityJyphot.flux.density;em.radio;stat.maxfloatnullableHCN[0.49/2.62]? The HCN peak flux densityJyphot.flux.density;em.mm.50-100GHz;stat.maxfloatnullableSiS[0.3/0.55]? The SiS peak flux densityJyphot.flux.density;em.mm.50-100GHz;stat.maxfloatnullableJ/AJ/170/84/table9Integrated flux densitiesSiO(1-0)v0[1.01/45.07]? The SiO J=1-0, {nu}=0 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNum[1/155] Numbermeta.idintNameSource identifiermeta.id;meta.maincharEpochEpoch of observation for NV Aur (G1)time.epochnullableH2O[0.69/1447.5]? The H_2_O integrated flux densityJy/beamphot.flux.density;em.radio.12-30GHzfloatnullable30SiO[0.34/52.17]? The ^30^SiO J=1-0, {nu}=0 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullable29SiO(1-0)v0[0.33/135.36]? The ^29^SiO J=1-0, {nu}=0 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullableSiO(1-0)v1[1.0/5313.6]? The SiO J=1-0, {nu}=1 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullableSiO(1-0)v2[0.72/6105.6]? The SiO J=1-0, {nu}=2 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullableSiO(1-0)v3[0.37/46.8]? The SiO J=1-0, {nu}=3 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullable29SiO(2-1)v0[3.28/104.83]? The ^29^SiO J=2-1, {nu}=0 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullableSiO(2-1)v0[1.62/204.13]? The SiO J=2-1, {nu}=0 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullableSiO(2-1)v1[1.08/3229.05]? The SiO J=2-1, {nu}=1 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullableSiO(2-1)v2[0.62/18.58]? The SiO J=2-1, {nu}=2 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullableSiO(3-2)v0[1.32/287.43]? The SiO J=3-2, {nu}=0 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullableSiO(3-2)v1[0.76/1369.71]? The SiO J=3-2, {nu}=1 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullableSiO(3-2)v2[0.96/621.73]? The SiO J=3-2, {nu}=2 integrated flux densityJy/beamphot.flux.density;em.radiofloatnullableHCN[3.92/67.36]? The HCN integrated flux densityJy/beamphot.flux.density;em.mm.50-100GHzfloatnullableSiS[4.64/16.44]? The SiS integrated flux densityJy/beamphot.flux.density;em.mm.50-100GHzfloatnullableJ/AJ/170/84/table11Peak velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNum[1/155] Numbermeta.idintNameSource identifiermeta.id;meta.maincharEpochEpoch of observation for NV Aur (G1)time.epochnullableH2O[-148.1/94.3]? The H_2_O peak velocitykm/sspect.dopplerVelocfloatnullable30SiO[-72.5/75.4]? The ^30^SiO J=1-0, {nu}=0 peak velocitykm/sspect.dopplerVelocfloatnullable29SiO(1-0)v0[-72.5/74.8]? The ^29^SiO J=1-0, {nu}=0 peak velocitykm/sspect.dopplerVelocfloatnullableSiO(1-0)v0[-76.0/49.4]? The SiO J=1-0, {nu}=0 peak velocitykm/sspect.dopplerVelocfloatnullableSiO(1-0)v1[-148.9/146.4]? The SiO J=1-0, {nu}=1 peak velocitykm/sspect.dopplerVelocfloatnullableSiO(1-0)v2[-148.9/146.0]? The SiO J=1-0, {nu}=2 peak velocitykm/sspect.dopplerVelocfloatnullableSiO(1-0)v3[-53.5/80.0]? The SiO J=1-0, {nu}=3 peak velocitykm/sspect.dopplerVelocfloatnullable29SiO(2-1)v0[-53.3/44.7]? The ^29^SiO J=2-1, {nu}=0 peak velocitykm/sspect.dopplerVelocfloatnullableSiO(2-1)v0[-72.4/48.7]? The SiO J=2-1, {nu}=0 peak velocitykm/sspect.dopplerVelocfloatnullableSiO(2-1)v1[-149.4/98.0]? The SiO J=2-1, {nu}=1 peak velocitykm/sspect.dopplerVelocfloatnullableSiO(2-1)v2[-25.2/12.8]? The SiO J=2-1, {nu}=2 peak velocitykm/sspect.dopplerVelocfloatnullableSiO(3-2)v0[-72.3/74.7]? The SiO J=3-2, {nu}=0 peak velocitykm/sspect.dopplerVelocfloatnullableSiO(3-2)v1[-124.8/92.0]? The SiO J=3-2, {nu}=1 peak velocitykm/sspect.dopplerVelocfloatnullableSiO(3-2)v2[-72.4/58.7]? The SiO J=3-2, {nu}=2 peak velocitykm/sspect.dopplerVelocfloatnullableHCN[-29.3/38.5]? The HCN peak velocitykm/sspect.dopplerVelocfloatnullableSiS[11.8/31.9]? The SiS peak velocitykm/sspect.dopplerVelocfloatnullableJ/AJ/170/84/table12Full widths at zero power (FWZP)HCN[12.95/54.55]? The HCN FWZPkm/sspect.line.eqWidthfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNum[1/155] Numbermeta.idintNameSource identifiermeta.id;meta.maincharEpochEpoch of observation for NV Aur (G1)time.epochnullableH2O[2.78/35.0]? The H_2_O FWZPkm/sspect.line.eqWidthfloatnullable30SiO[2.54/11.32]? The ^30^SiO J=1-0, {nu}=0 FWZPkm/sspect.line.eqWidthfloatnullable29SiO(1-0)v0[3.1/30.53]? The ^29^SiO J=1-0, {nu}=0 FWZPkm/sspect.line.eqWidthfloatnullableSiO(1-0)v0[1.24/45.63]? The SiO J=1-0, {nu}=0 FWZPkm/sspect.line.eqWidthfloatnullableSiO(1-0)v1[4.07/39.97]? The SiO J=1-0, {nu}=1 FWZPkm/sspect.line.eqWidthfloatnullableSiO(1-0)v2[4.04/31.9]? The SiO J=1-0, {nu}=2 FWZPkm/sspect.line.eqWidthfloatnullableSiO(1-0)v3[2.02/16.18]? The SiO J=1-0, {nu}=3 FWZPkm/sspect.line.eqWidthfloatnullable29SiO(2-1)v0[7.03/40.64]? The ^29^SiO J=2-1, {nu}=0 FWZPkm/sspect.line.eqWidthfloatnullableSiO(2-1)v0[6.38/48.73]? The SiO J=2-1, {nu}=0 FWZPkm/sspect.line.eqWidthfloatnullableSiO(2-1)v1[2.75/40.13]? The SiO J=2-1, {nu}=1 FWZPkm/sspect.line.eqWidthfloatnullableSiO(2-1)v2[3.93/14.95]? The SiO J=2-1, {nu}=2 FWZPkm/sspect.line.eqWidthfloatnullableSiO(3-2)v0[6.87/43.75]? The SiO J=3-2, {nu}=0 FWZPkm/sspect.line.eqWidthfloatnullableSiO(3-2)v1[2.11/31.95]? The SiO J=3-2, {nu}=1 FWZPkm/sspect.line.eqWidthfloatnullableSiO(3-2)v2[3.01/21.93]? The SiO J=3-2, {nu}=2 FWZPkm/sspect.line.eqWidthfloatnullableSiS[37.93/41.98]? The SiS FWZPkm/sspect.line.eqWidthfloatnullable