WL
W. Langer
astro-ph.GAastro-phastro-ph.SRExtraterrestrial EnvironmentNASA Center JPLNASA Discipline ExobiologyAstronomyModels, Chemical
On Valency
published · living versionsW_jdnn4hgb·v1 · currentpublished
First detection of ND in the solar-mass protostar IRAS16293-2422
with A. Bacmann, E. Caux, P. Hily-Blant, B. Parise +62
1 version
Preprints & journals
55 papers in the corpus · 1996–2025An 18-25 GHz spectroscopic survey of dense cores in the Chamaeleon I molecular cloud2503.01755v1 · Dariusz C. Lis, William D. Langer, Jorge L. Pineda et al.2025 · 2 citationsA&A 696, A61 (2025)
Nitrogen Abundance Distribution in the inner Milky Way2407.12919v2 · Jorge L. Pineda, Shinji Horiuchi, L. D. Anderson et al.2024 · 6 citationsarXiv
Structure of the W3A Low Density Foreground Region2307.10445v1 · Paul F. Goldsmith, William D. Langer, Youngmin Seo et al.2023 · 2 citationsarXiv
The Dense Warm Ionized Medium in the Inner Galaxy2105.07023v1 · W. D. Langer, J. L. Pineda, P. F. Goldsmith et al.2021 · 10 citationsA&A 651, A59 (2021)
Electron Densities and Nitrogen Abundances in Ionized Gas Derived Using [NII] Fine-structure and Hydrogen Recombination lines1905.06935v3 · Jorge L. Pineda, Shinji Horiuchi, L.D. Anderson et al.2019 · 17 citationsarXiv
Probing ISM Structure in Trumpler 14 & Carina I Using The Stratospheric Terahertz Observatory 21903.09517v2 · Young Min Seo, Paul F. Goldsmith, Chris Walker et al.2019 · 22 citationsarXiv
Ionized gas in the Scutum spiral arm as traced in [N II] and [C II]1708.02310v1 · W. D. Langer, T. Velusamy, P. F. Goldsmith et al.2017 · 11 citationsarXiv
Characterizing the transition from diffuse atomic to dense molecular clouds in the Magellanic clouds with [CII], [CI], and CO1704.00739v2 · Jorge L. Pineda, William D. Langer, Paul F. Goldsmith et al.2017 · 48 citationsarXiv
Thermal Pressure in Diffuse H2 Gas Measured by Herschel [C II] Emission and FUSE UV H2 Absorption1702.02613v1 · Thangasamy Velusamy, William Langer, Paul Goldsmith et al.2017 · 8 citationsarXiv
Kinematics and properties of the Central Molecular Zone as probed with [C II]1701.03482v1 · W. D. Langer, T. Velusamy, M. R. Morris et al.2017 · 27 citationsarXiv
[C II] and [N II] from dense ionized regions in the Galaxy1605.00664v1 · W. D. Langer, P. F. Goldsmith, J. L. Pineda2016 · 23 citationsarXiv
L1599B: Cloud Envelope and C+ Emission in a Region of Moderately Enhanced Radiation Field1604.02447v1 · Paul F. Goldsmith, Jorge L. Pineda, William D. Langer et al.2016 · 12 citationsarXiv
Herschel Galactic plane survey of [NII] fine structure emission1510.05706v1 · Paul F. Goldsmith, Umut A. Y\ild\iz, William D. Langer et al.2015 · 68 citationsarXiv
[C II] emission from galactic nuclei in the presence of X-rays1505.02777v2 · William D. Langer, Jorge L. Pineda2015 · 51 citationsA&A 580, A5 (2015)
Ionized gas at the edge of the Central Molecular Zone1501.06832v1 · W. D. Langer, P. F. Goldsmith, J. L. Pineda et al.2015 · 21 citationsarXiv
A Herschel [CII] Galactic plane survey III: [CII] as a tracer of star formation1409.0537v1 · Jorge L. Pineda, William D. Langer, Paul F. Goldsmith2014 · 132 citationsA&A 570, A121 (2014)
A Herschel [C II] Galactic plane survey II: CO-dark H2 in clouds1312.3320v2 · W. D. Langer, T. Velusamy, J. L. Pineda et al.2013 · 167 citationsarXiv
HiRes Deconvolved Spitzer Images of 89 Protostellar Jets and Outflows: New Data on Evolution of Outflow Morphology1312.0978v1 · T. Velusamy, W. D. Langer, T. Thompson2013 · 62 citationsarXiv
A Herschel [CII] Galactic plane survey I: the global distribution of ISM gas components1304.7770v3 · Jorge L. Pineda, William D. Langer, Thangasamy Velusamy et al.2013 · 370 citationsarXiv
Collisional Excitation of the [CII] Fine Structure Transition in Interstellar Clouds1209.4536v2 · Paul F. Goldsmith, William D. Langer, Jorge L. Pineda et al.2012 · 213 citationsarXiv
[CII] 158 micron line detection of the warm ionized medium in the Scutum--Crux spiral arm tangency1205.0550v1 · T. Velusamy, W. D. Langer, J. L. Pineda et al.2012 · 38 citationsarXiv
Jets and Wide Angle Outflows in Cepheus E: New Evidence from Spitzer1108.3578v1 · T. Velusamy, W. D. Langer, M. S. N. Kumar et al.2011 · 21 citationsAstrophysical Journal (September 20, 2011, V739)
Herschel observations of Extra-Ordinary Sources: Methanol as a probe of physical conditions in Orion KL1101.0805v1 · S. Wang, E. A. Bergin, N. R. Crockett et al.2011 · 49 citationsAstron. Astrophys. 527 (2011) A95
Detection of OH and HO towards Orion~KL1009.1450v1 · H. Gupta, P. Rimmer, J. C. Pearson et al.2010 · 49 citationsAstron. Astrophys. 521 (2010) L47
The methanol lines and hot core of OMC2-FIR4, an intermediate-mass protostar, with Herschel-HIFI1008.2513v1 · M. Kama, C. Dominik, S. Maret et al.2010 · 20 citationsarXiv
Herschel observations of EXtra-Ordinary Sources (HEXOS): Observations of H2O and its isotopologues towards Orion KL1007.5470v1 · G. J. Melnick, V. Tolls, D. A. Neufeld et al.2010 · 36 citationsAstron. Astrophys. 521 (2010) L27
Herschel observations of deuterated water towards Sgr B2(M)1007.5128v1 · Claudia Comito, Peter Schilke, Rainer Rolffs et al.2010 · 16 citationsAstron. Astrophys. 521 (2010) L38
Reversal of infall in SgrB2(M) revealed by Herschel/HIFI observations of HCN lines at THz frequencies1007.5131v1 · Rainer Rolffs, Peter Schilke, Claudia Comito et al.2010 · 29 citationsAstron. Astrophys. 521 (2010) L46
A Sample of [CII] Clouds Tracing Dense Clouds in Weak FUV Fields observed by Herschel1007.5068v1 · Jorge L. Pineda, Thangasamy Velusamy, William D. Langer et al.2010 · 37 citationsarXiv
First detection of ND in the solar-mass protostar IRAS16293-24221007.4691v1 · A. Bacmann, E. Caux, P. Hily-Blant et al.2010 · 47 citationsarXivon Valency
Ortho-to-para ratio of interstellar heavy water1007.4410v1 · C. Vastel, C. Ceccarelli, E. Caux et al.2010 · 49 citationsarXiv
Herschel observations of EXtra-Ordinary Sources: The Terahertz spectrum of Orion KL seen at high spectral resolution1007.4564v1 · N. R. Crockett, E. A. Bergin, S. Wang et al.2010 · 31 citationsAstron. Astrophys. 521 (2010) L21
The distribution of water in the high-mass star-forming region NGC 6334I1007.4226v1 · M. Emprechtinger, D. C. Lis, T. Bell et al.2010 · 35 citationsarXiv
[CII] observations of H molecular layers in transition clouds1007.3338v1 · T. Velusamy, W. D. Langer, J. L. Pineda et al.2010 · 51 citationsarXiv
C detection of warm dark gas in diffuse clouds1007.3048v1 · W. D. Langer, T. Velusamy, J. L. Pineda et al.2010 · 140 citationsarXiv
Herschel observations of extra-ordinary sources: Detection of Hydrogen Fluoride in absorption towards Orion~KL1007.2149v1 · T.G. Phillips, E.A. Bergin, D.C. Lis et al.2010 · 52 citationsAstron. Astrophys. 518 (2010) L109
Herschel observations of EXtra-Ordinary Sources: the present and future of spectral surveys with Herschel/HIFI1007.2172v1 · E. A. Bergin, T. G. Phillips, C. Comito et al.2010 · 136 citationsAstron. Astrophys. 521 (2010) L20
Herschel observations of extra-ordinary sources: Detecting spiral arm clouds by CH absorption lines1007.1867v1 · S.-L. Qin, P. Schilke, C. Comito et al.2010 · 34 citationsarXiv
Herschel/HIFI observations of spectrally resolved methylidyne signatures toward the high-mass star-forming core NGC6334I1007.1539v3 · M.H.D. van der Wiel, F.F.S. van der Tak, D.C. Lis et al.2010 · 16 citationsAstronomy & Astrophysics, 521, L43 (Oct 2010)
Herschel/HIFI discovery of interstellar chloronium (HCl)1007.1461v1 · D. C. Lis, J. C. Pearson, D. A. Neufeld et al.2010 · 100 citationsAstron. Astrophys. 521 (2010) Art. No. L9
Herschel observations of ortho- and para-oxidaniumyl (H2O+) in spiral arm clouds toward Sgr B2(M)1007.0670v1 · P. Schilke, C. Comito, H.S.P. Mueller et al.2010 · 41 citationsAstron. Astrophys. 521 (2010) Art. No. L11
CHESS, Chemical Herschel surveys of star forming regions:Peering into the protostellar shock L1157-B11006.1305v2 · B. Lefloch, S. Cabrit, C. Codella et al.2010 · 76 citationsarXiv
Detection of interstellar oxidaniumyl: abundant H2O+ towards the star-forming regions DR21, Sgr B2, and NGC63341005.2521v1 · V. Ossenkopf, H.S.P. Muller, D.C. Lis et al.2010 · 86 citationsAstron. Astrophys. 518 (2010) Art. No. L111
Dichotomy in the Dynamical Status of Massive Cores in Orion0810.2515v1 · T. velusamy, R. Peng, D. Li et al.2008 · 28 citationsarXiv
Highly Collimated Jets and Wide-Angle Outflows in HH46/47: New Evidence from Spitzer IR Images0710.0597v1 · T. Velusamy, W. D. Langer, K. A. Marsh2007 · 68 citationsAstrophys.J.668:L159-L162,2007
Massive Quiescent Cores in Orion. -- II. Core Mass Functionastro-ph/0610634v1 · D. Li, T. Velusamy, P. F. Goldsmith et al.2006 · 35 citationsAstrophys.J.655:351-363,2007
Turbulence driven diffusion in protoplanetary disks - chemical effects in the outer diskastro-ph/0603103v1 · K. Willacy, W. D. Langer, M. Allen & G. Bryden2006 · 59 citationsAstrophys.J. 644 (2006) 1202-1213
Electron Abundance in Protostellar Coresastro-ph/0406500v1 · Paolo Padoan, Karen Willacy, William Langer et al.2004 · 19 citationsAstrophys.J. 614 (2004) 203-210
High Angular Resolution Measurement of Ion and Neutral Spectra as a Probe of the Magnetic Field Structure in DR21(OH)astro-ph/0309160v1 · Shih-Ping Lai, T. Velusamy, W. D. Langer2003 · 24 citationsAstrophys.J.596:L239-L242,2003
The Physical and Chemical Status of Pre-protostellar Core B68astro-ph/0303642v1 · Shih-Ping Lai, T. Velusamy, W. D. Langer et al.2003 · 37 citationsAstron.J. 126 (2003) 311
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