Tolls, Volker
Staff of Smithsonian Astrophysical Observatory
Design and test of radio telescope instrumentation, ground-based and spaceborne, millimeter-to-infrared astronomy; interstellar chemistry; star formation; data reduction and analysis; planet detection and imaging; coronagraphic techniques
Positions
- Astronomer, Smithsonian Astrophysical Observatory
Background And Education
Education And Training
- Ph.D., University of Cologne
Publications
Selected Publications
-
Article
- Callanan, Daniel, Longmore, Steven N., Battersby, Cara, Hatchfield, H. Perry, Walker, Daniel L., Henshaw, Jonathan, Keto, Eric, Barnes, Ashley, Ginsburg, Adam, Kauffmann, Jens, Kruijssen, J. M. Diederik, Lu, Xing, Mills, Elisabeth A. C., Pillai, Thushara, Zhang, Qizhou, Bally, John, Butterfield, Natalie, Contreras, Yanett A., Ho, Luis C., Immer, Katharina, Johnston, Katharine G., Ott, Juergen, Patel, Nimesh, and Tolls, Volker. 2023. "CMZoom III: Spectral line data release." Monthly Notices of the Royal Astronomical Society, 520 4760–4778. https://doi.org/10.1093/mnras/stad388. 2023
- Long, Joseph D., Males, Jared R., Haffert, Sebastiaan Y., Pearce, Logan, Marley, Mark S., Morzinski, Katie M., Close, Laird M., Otten, Gilles P. P. L., Snik, Frans, Kenworthy, Matthew A., Keller, Christoph U., Hinz, Philip, Monnier, John D., Weinberger, Alycia, and Tolls, Volker. 2023. "Improved Companion Mass Limits for Sirius A with Thermal Infrared Coronagraphy Using a Vector-apodizing Phase Plate and Time-domain Starlight-subtraction Techniques." The Astronomical Journal, 165 216. https://doi.org/10.3847/1538-3881/acbd4b. 2023
- Ashby, Matthew L. N., Hora, Joseph L., Lakshmipathaiah, Kiran, Vig, Sarita, Sai Subrahmanyam Gorthi, Rama Krishna, Kang, Miju, Tolls, Volker, Melnick, Gary J., Werner, Michael W., Crill, Brendan P., Masters, Daniel C., Peña, Carlos Contreras, Lee, Jeong-Eun, Kim, Jaeyeong, Lee, Ho-Gyu, Yoon, Sung-Yong, Yang, Soung-Chul, Flagey, Nicholas, and Mennesson, Bertrand. 2023. "The SPHEREx Target List of Ice Sources (SPLICES)." The Astrophysical Journal, 949 105. https://doi.org/10.3847/1538-4357/acc86b. 2023
- Winston, Elaine, Hora, Joseph L., and Tolls, Volker. 2020. "A Census of Star Formation in the Outer Galaxy. II. The GLIMPSE360 Field." The Astronomical Journal, 160 68. https://doi.org/10.3847/1538-3881/ab99c8. 2020
- Seo, Young Min, Goldsmith, Paul F., Tolls, Volker, Shipman, Russell, Kulesa, Craig, Peters, William, Walker, Christopher, and Melnick, Gary. 2020. "Applications of Machine Learning Algorithms in Processing Terahertz Spectroscopic Data." Journal of Astronomical Instrumentation, 9 2050011. https://doi.org/10.1142/S2251171720500117. 2020
- Hatchfield, H. Perry, Battersby, Cara, Keto, Eric, Walker, Daniel, Barnes, Ashley, Callanan, Daniel, Ginsburg, Adam, Henshaw, Jonathan D., Kauffmann, Jens, Kruijssen, J. M. Diederik, Longmore, Steve N., Lu, Xing, Mills, Elisabeth A. C., Pillai, Thushara, Zhang, Qizhou, Bally, John, Butterfield, Natalie, Contreras, Yanett A., Ho, Luis C., Ott, Jürgen, Patel, Nimesh, and Tolls, Volker. 2020. "CMZoom. II. Catalog of Compact Submillimeter Dust Continuum Sources in the Milky Way's Central Molecular Zone." The Astrophysical Journal Supplement Series, 251 14. https://doi.org/10.3847/1538-4365/abb610. 2020
- Battersby, Cara, Keto, Eric, Walker, Daniel, Barnes, Ashley, Callanan, Daniel, Ginsburg, Adam, Hatchfield, H. Perry, Henshaw, Jonathan, Kauffmann, Jens, Kruijssen, J. M. Diederik, Longmore, Steven N., Lu, Xing, Mills, Elisabeth A. C., Pillai, Thushara, Zhang, Qizhou, Bally, John, Butterfield, Natalie, Contreras, Yanett A., Ho, Luis C., Ott, Jürgen, Patel, Nimesh, and Tolls, Volker. 2020. "CMZoom: Survey Overview and First Data Release." The Astrophysical Journal Supplement Series, 249 35. https://doi.org/10.3847/1538-4365/aba18e. 2020
- Melnick, Gary J., Tolls, Volker, Snell, Ronald L., Kaufman, Michael J., Bergin, Edwin A., Goicoechea, Javier R., Goldsmith, Paul F., González-Alfonso, Eduardo, Hollenbach, David J., Lis, Dariusz C., and Neufeld, David A. 2020. "Distribution of Water Vapor in Molecular Clouds. II." The Astrophysical Journal, 892 22. https://doi.org/10.3847/1538-4357/ab77b4. 2020
- Winston, Elaine, Hora, Joseph, Gutermuth, Robert, and Tolls, Volker. 2019. "A Census of Star Formation in the Outer Galaxy: The SMOG Field." The Astrophysical Journal, 880 9. https://doi.org/10.3847/1538-4357/ab27c8. 2019
- Seo, Young Min, Goldsmith, Paul F., Walker, Christopher K., Hollenbach, David J., Wolfire, Mark G., Kulesa, Craig A., Tolls, Volker, Bernasconi, Pietro N., Kavak, Ümit, van der Tak, Floris F. S., Shipman, Russ, Gao, Jian Rong, Tielens, Alexander, Burton, Michael G., Yorke, Harold, Young, Erick, Peters, William L., Young, Abram, Groppi, Christopher, Davis, Kristina, Pineda, Jorge L., Langer, William D., Kawamura, Jonathan H., Stark, Antony, Melnick, Gary et al. 2019. "Probing ISM Structure in Trumpler 14 and Carina I Using the Stratospheric Terahertz Observatory 2." The Astrophysical Journal, 878 120. https://doi.org/10.3847/1538-4357/ab2043. 2019
- Kauffmann, Jens, Goldsmith, Paul F., Melnick, Gary, Tolls, Volker, Guzman, Andres, and Menten, Karl M. 2017. "Molecular Line Emission as a Tool for Galaxy Observations (LEGO). I. HCN as a tracer of moderate gas densities in molecular clouds and galaxies." Astronomy and Astrophysics, 605 L5. https://doi.org/10.1051/0004-6361/201731123. 2017
- Tahani, K., Plume, R., Bergin, E. A., Tolls, V., Phillips, T. G., Caux, E., Cabrit, S., Goicoechea, J. R., Goldsmith, P. F., Johnstone, D., Lis, D. C., Pagani, L., Menten, K. M., Müller, H. S. P., Ossenkopf-Okada, V., Pearson, J. C., and van der Tak, F. F. S. 2016. "Analysis of the Herschel/Hexos Spectral Survey Toward Orion South: A Massive Protostellar Envelope with Strong External Irradiation." The Astrophysical Journal, 832 12. https://doi.org/10.3847/0004-637X/832/1/12. 2016
- Jones, S. C., Houde, M., Harwit, M., Kidger, M., Kraus, A., MCoey, C., Marston, A., Melnick, G., Menten, K. M., Morris, P., Teyssier, D., and Tolls, V. 2014. "Polarisation observations of H2O JK-1 K1 = 532 - 441 620.701 GHz maser emission with Herschel/HIFI in Orion KL." Astronomy and Astrophysics, 567 31. https://doi.org/10.1051/0004-6361/201323267. 2014
- Neufeld, David A., Wu, Yuanwei, Kraus, Alex, Menten, Karl M., Tolls, Volker, Melnick, Gary J., and Nagy, Zsofia. 2013. "Herschel/HIFI Observations of a New Interstellar Water Maser: The 532-441 Transition at 620.701 GHz." The Astrophysical Journal, 769 48. https://doi.org/10.1088/0004-637X/769/1/48. 2013
- Neufeld, David A., Tolls, Volker, Agúndez, Marcelino, González-Alfonso, Eduardo, Decin, Leen, Daniel, Fabien, Cernicharo, José, Melnick, Gary J., Schmidt, Miroslaw, and Szczerba, Ryszard. 2013. "Herschel/HIFI Search for H_2^{17}O and H_2^{18}O in IRC 10216: Constraints on Models for the Origin of Water Vapor." The Astrophysical Journal Letters, 767 L3. https://doi.org/10.1088/2041-8205/767/1/L3. 2013
- Melnick, Gary J., Tolls, Volker, Goldsmith, Paul F., Kaufman, Michael J., Hollenbach, David J., Black, John H., Encrenaz, Pierre, Falgarone, Edith, Gerin, Maryvonne, Hjalmarson, Åke, Li, Di, Lis, Dariusz C., Liseau, René, Neufeld, David A., Pagani, Laurent, Snell, Ronald L., van der Tak, Floris, and van Dishoeck, Ewine F. 2012. "Herschel Search for O2 toward the Orion Bar." The Astrophysical Journal, 752 26. https://doi.org/10.1088/0004-637X/752/1/26. 2012
- Hinz, Philip, Codona, Johanan, Guyon, Olivier, Hoffmann, William, Skemer, Andrew, Hora, Joseph L., Tolls, Volker, Boss, Alan, Weinberger, Alycia, Arbo, Paul, Connors, Thomas, Durney, Olivier, McMahon, Thomas, Montoya, Manny, and Vaitheeswaran, Vidhya. 2012. "TIGER: a high contrast infrared imager for the Giant Magellan Telescope." Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8446. https://doi.org/10.1117/12.926751. 2012
- Melnick, Gary J., Tolls, Volker, Snell, Ronald L., Bergin, Edwin A., Hollenbach, David J., Kaufman, Michael J., Li, Di, and Neufeld, David A. 2011. "Distribution of Water Vapor in Molecular Clouds." The Astrophysical Journal, 727 13. https://doi.org/10.1088/0004-637X/727/1/13. 2011
- Green, J. D., Watson, D. M., Bergin, Edwin A., Maret, Sébastien, Melnick, Gary J., Sonnentrucker, P., Tolls, V., Sargent, B. A., Forrest, W. J., Kim, K. H., and Raines, S. N. 2011. "GGD 37: An Extreme Protostellar Outflow." The Astrophysical Journal Letters, 726 L1. https://doi.org/10.1088/2041-8205/726/1/L1. 2011
- Etxaluze, M., Smith, Howard A., Tolls, V., Stark, Antony A., and González-Alfonso, E. 2011. "The Galactic Center in the Far-infrared." The Astronomical Journal, 142 134. https://doi.org/10.1088/0004-6256/142/4/134. 2011
- Melnick, Gary J., Tolls, V., Neufeld, David A., Bergin, Edwin A., Phillips, Thomas G., Wang, S., Crockett, N. R., Bell, T. A., Blake, Geoffrey A., Cabrit, S., Caux, E., Ceccarelli, C., Cernicharo, José, Comito, C., Daniel, F., Dubernet, M. -L, Emprechtinger, M., Encrenaz, P., Falgarone, E., Gerin, M., Giesen, T. F., Goicoechea, J. R., Goldsmith, P. F., Herbst, E., Joblin, C. et al. 2010. "Herschel observations of EXtra-Ordinary Sources (HEXOS): Observations of H2O and its isotopologues towards Orion KL." Astronomy and Astrophysics, 521 L27. https://doi.org/10.1051/0004-6361/201015085. 2010
- Maret, Sébastien, Bergin, Edwin A., Neufeld, David A., Green, Joel D., Watson, Dan M., Harwit, Martin O., Kristensen, Lars E., Melnick, Gary J., Sonnentrucker, Paule, Tolls, Volker, Werner, Michael W., Willacy, Karen, and Yuan, Yuan. 2009. "Spitzer Mapping of Molecular Hydrogen Pure Rotational Lines in NGC 1333: A Detailed Study of Feedback in Star Formation." The Astrophysical Journal, 698 1244–1260. https://doi.org/10.1088/0004-637X/698/2/1244. 2009
- Neufeld, David A., Nisini, Brunella, Giannini, Teresa, Melnick, Gary J., Bergin, Edwin A., Yuan, Yuan, Maret, Sébastien, Tolls, Volker, Güsten, Rolf, and Kaufman, Michael J. 2009. "Spitzer Spectral Line Mapping of Protostellar Outflows. I. Basic Data and Outflow Energetics." The Astrophysical Journal, 706 170–183. https://doi.org/10.1088/0004-637X/706/1/170. 2009
- Melnick, Gary J., Tolls, Volker, Neufeld, David A., Yuan, Yuan, Sonnentrucker, Paule, Watson, Dan M., Bergin, Edwin A., and Kaufman, Michael J. 2008. "Detection of Extended Hot Water in the Outflow from NGC 2071." The Astrophysical Journal, 683 876–892. https://doi.org/10.1086/589853. 2008
- Bensch, Frank, Melnick, Gary J., Neufeld, David A., Harwit, Martin, Snell, Ronald L., Patten, Brian M., and Tolls, Volker. 2007. "Submillimeter Wave Astronomy Satellite observations of Comet 9P/Tempel 1 and Deep Impact." ICARUS, 191 267–275. 2007
Contact
Location
- Smithsonian Astrophysical Observatory Academic Department