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David K. Lynch, Phd

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David K. Lynch, PhD Education: PhD Astronomy, University of Texas at Austin BS Astrophysics, Indiana University Dave is an astrophysicist and of late a geologist. He postdocced in the Caltech Physics Dept and the UC Berkeley Radiophysics group. Infrared spectroscopy of cosmic sources is his specialty (star formation regions, pre-main sequence stars, novae, supernovae and solar system objects). Dave has used telescopes all over the world, including NASA and USAF airborne observatories and multiple satellite telescopes. His recent work involves tectonics and geology of the Mojave and Sonora deserts. Dave has over two hundred peer-review journal publications and is currently a geophysical consultant. Relevant Publications since 2000 Books Lynch, D. K., Field Guide to the San Andreas Fault, Thule Scientific Press (2006) Lynch, D. K., K. Sassen, D. Starr and G. Stephens (eds), Cirrus, Oxford University Press, (2002) Lynch, D. K. and W.C. Livingston, Color and Light in Nature, Cambridge University Press (2001). Peer Reviewed papers Fletcher, John, Orlando Teran, Thomas Rockwell, Michael Oskin, Kenneth Hudnut, Ronald Spelz, Pierre Lacan, Mathew Dorsey, Giles Ostermijer, Thomas Mitchell, Sinan Akciz, Ana Hernandez-Flores, Alejandro Hinojosa, Sergio Arregui-Ojeda, Ivan Peña-Villa, and David Lynch, An analysis of the factors that control fault zone architecture and the importance of fault orientation relative to regional stress, Geo. Soc. Am. Bul., https://doi.org/10.1130/B35308.1 (2020) Lynch, David K., R. Travis Deane, Andrea Donnellan, Carolina Zamora, Gregory A. Lyzenga and David S. P. Dearborn, Developments in the moving mud spring mystery, Proceedings of the 2020 Desert Symposium, April 17-20, 2020, Zzyzx, D. M. Miller (ed.) 185-190 (2020) Lynch, David K. and Brian McNeece, On the Origin and Evolution of the Salton Sea, Proceedings of the 2020 Desert Symposium, April 17-20, 2020, Zzyzx, D. M. Miller (ed.) 179-184 (2020) Deane, R. Travis and David K. Lynch, A Moving Mud Spring Threatening Critical Infrastructure, Imperial County, California, Proceedings of GeoCongress 2020 (in press) Lynch, David K. and R. Travis Deane A Moving Mystery, Civil Engineering, July/August, 54-63 (2019) Lynch, David K., Circular growth patterns in Southern California desert plants, In Exploring Ends of Eras in the Eastern Mojave Desert, proceedings of the 2019 Desert Symposium, David M. Miller (ed.), 118-122 (2019) Adams and Lynch, D. K.A short-lived geothermal mud pot near Niland, Imperial County, California, In Exploring Ends of Eras in the Eastern Mojave Desert, proceedings of the 2019 Desert Symposium, David M. Miller (ed.), 161-167 (2019) Lynch, D, K., Paul M. Adams and David S.P. Dearborn, Fault Structure and Biogenic Soil Calcite Near Ivanpah Spring, Clark Mountain, San Bernardino County, California, in the Mojave Desert, In Against the Current, proceedings of the 2018 Desert Symposium, David M. Miller (ed.), 71-77 (2018) Lynch, D, K., Living On The Edge II: Further Investigation of Enhanced Roadside Creosote Growth in the Mojave Desert, In Exploring Ends of Eras in the Eastern Mojave Desert, proceedings of the 2017 Desert Symposium, David M. Miller (ed.), 306-309 (2017) Lynch, David K. and David S. P. Dearborn, Icebows, Applied Optics, 56(19) G1-G4 (2017) Lynch, D. K, D. S. P. Dearborn and S. Richtsmeier, Antitwilight I: Structure and Optics, Applied Optics, 56(19) G156-G168 (2017) Richtsmeier, S., Lynch, D. K and D. S. P. Dearborn, Antitwilight II: Monte Carlo Simulations, Applied Optics, 56(19) G169-G178 (2017) Adams, Paul M., David K. Lynch, Kerry N. Buckland, Patrick D. Johnson and David M. Tratt, Fumarole Sulfate Mineralogy Related to Geothermal Fields at the Salton Sea, Imperial County, California, Journal of Volcanology and Geothermal Research, 347 (Nov) 15-43 (2017) Bernstein, L. S., R. M. Shroll, D. K. Lynch, and F. O. Clark, A Small Fullerene (C24) may be the Carrier of the 11.2µm Unidentified Infrared Band, Astrophys. J., 836:229 (11pp) (2017) Lynch, D. K. and Paul. M. Adams, Anatomy of Ivanpah Spring, In ECSZ Does it, proceedings of the 2017 Desert Symposium, R. Reynolds (ed.), Desert Studies Center, California State University Fullerton, 288-291 (2017) Lynch, D. K., Living On The Edge II: Further Investigation of Enhanced Roadside Creosote Growth in the Mojave Desert, In ECSZ Does it, proceedings of the 2017 Desert Symposium, R. Reynolds (ed.), Desert Studies Center, California State University Fullerton, 306-309 (2017) Lynch, David K., Living on the Edge: Enhanced Roadside Growth of Creosote Bush (Larrea tridentata), In Going Loco, proceedings of the 2016 Desert Symposium, R. Reynolds (ed.), Desert Studies Center, California State University Fullerton, 236-238 (2016) Adams, Paul M., David K. Lynch, and David C. Buesch, Accretionary Lapilli: What’s holding them together? In Going Loco, proceedings of the 2016 Desert Symposium, R. Reynolds (ed.), Desert Studies Center, California State University Fullerton, 256-265 (2016) Lynch, David K. and Paul M. Adams, Ground-based thermal infrared imaging survey of the Salton Buttes In Going Loco, proceedings of the 2016 Desert Symposium, R. Reynolds (ed.), Desert Studies Center, California State University Fullerton, 266-270 (2016) Hornbeck, J. B., J. R. Swearingen, C. A. Grady, G. M. Williger, A. Brown, M. L. Sitko, J. P. Wisniewski, M. D. Perrin, J. T. Lauroesch, G. Schneider, D. Apai, S. Brittain, J. M. Brown, E. H. Champney, K. Hamaguchi, Th. Henning, D. K. Lynch, R. Petre, R. W. Russell, F. M. Walter, and B. Woodgate, Panchromatic Imaging of a Transitional Disk: The Disk of GM Aur in Optical and FUV Scattered Light, Astrophys J., 829, 2 (2016) Raj, A., N. M. Ashok, Richard J. Rudy, Ray W. Russell, David K. Lynch, Charles E. Woodward, “IR Study Of Nova V2468 Cyg From Early Decline To the Coronal Phase”, Astron. J, 149 article ID 136 (2015) Bernstein, L. S., F. O. Clark, D. K. Lynch and G. A. Galazutdinov, “Analysis of Narrow and Broad Profiles Observed for the λ6614 Diffuse Interstellar Band”, Astrophys J., 801:6 (12pp), March 1 (2015) Bernstein, L. S. F. O. Clark, J. A. Cline, and D. K. Lynch, “The Diffuse Interstellar Bands and Anomalous Microwave Emission May Originate From The Same Carriers”, Astrophys. J., 813:122 (2015) Lynch, David K. “Snell’s Window in Wavy Water” Applied Optics Vol. 54, # 4, pp. B8–B11 (2015) Lynch, David K. “The Role of Dust in Landscape Brightness and Color” Applied Optics Vol. 54, # 4, pp. B41–B45 (2015) Lynch, David K. “Shadows” Applied Optics Vol. 54, # 4, pp. B154-B164 (2015) 189. Lynch, David K. “Influence of Surface Inclination on the Opposition Effect” Applied Optics Vol. 54, # 4, pp. B22–B25 (2015) Ellerbroek, L. E., M. Benisty, S. Kraus, K. Perraut, J. Kluska, J. B. Le Bouquin, M. Borges Fernandes, A. Domiciano de Souza, K. M. Maaskant, L. Kaper, F. Tramper, A. Natta, D. Mourard, I. Tallon-Bosc, T. ten Brummelaar, M. L. Sitko, D. K. Lynch, and R. W. Russell “A resolved, AU-scale gas disk around the B[e] star HD 50138”, Astron & Astrophys 573, A77, 18 pp (2015) Loebman, S. R., J. P. Wisniewski, S. J. Schmidt, A. F. Kowalski, R. K. Barry, K. S. Bjorkman, H. B. Hammel, S. L. Hawley, M. M. Kawliwal, D. K. Lynch, R. W. Russell, M. L. Sitko, and P. Szkody, “The continued optical to mid-IR evolution of V838 Monocerotis”, Astron J. 149 17 (2014) Lynch, David K., Paul M. Adams and David M. Tratt, Mullet Island has become a peninsula, Proceedings of the 2014 Desert Symposium (R. Reynolds, ed.), 113-116 (2014) Lynch, David K. and Paul M. Adams, Hot volcanic vents on Red Island, Imperial County, California, Proceedings of the 2014 Desert Symposium (R. Reynolds, ed.), 117-120 (2014) Lynch, David K., The terrestrial opposition effect on desert playas, Proceedings of the 2014 Desert Symposium (R. Reynolds, ed.), 218-221 (2014) Adams, Paul M., and David K. Lynch, A mineralogical inventory of geothermal features southeast of the Salton Sea, Imperial County, California, Proceedings of the 2014 Desert Symposium (R. Reynolds, ed.), 100-111 (2014) Ellerbroek, L. E., L. Podio, C. Dougados, S. Cabrit, M. L. Sitko, H. Sana, L. Kaper, P. D. Klaassen, G. D. Mulder, I. Mendigut´ıa, A. de Koter, C. A. Grady, K. Grankin, H. van Wincke, F. Bacciotti1, R. W. Russell, D. K. Lynch, H. B. Hammel, L. C. Beerman, A. N. Day, D. M. Huelsman, C. Werren, A. Henden, and J. Grindlay “Relating jet structure with photometric variability: the Herbig Ae star HD 163296”, Astronomy & Astrophysics, 564, A87 (2014) Lynch, David K. and Frank Jordan “Vegetation Lineaments Near Pearblossom, CA: Possible Indicators of Secondary Faulting Subparallel to the San Andreas Fault” in Raising Questions in the Central Mojave Desert, Proc. of the 2013 Desert Symposium, (R. Reynolds, Ed), April 19-22, 2013 Zzyzx, 138-145 (2013) Lynch, David K. “The Cheeseboro Ridge Landslide, Los Angeles/Ventura County, California” in Raising Questions in the Central Mojave Desert, Proc. of the 2013 Desert Symposium, (R. Reynolds, Ed), April 19-22, 2013, 230 Zzyzx Lynch, David K. “Earthshine”, in Raising Questions in the Central Mojave Desert, Proceedings of the 2013 Desert Symposium, (R. Reynolds, Ed), April 19-22, 2013, 229, Zzyzx Lynch, D.K., L. S. Bernstein, F. O. Clark “Formation, Evolution and Destruction of Possible DIB Carriers: Dirty Molecular Hydrogen Ice Clusters” In The Diffuse Interstellar Bands, Proceedings IAU Symposium 297 2013, J. Cami and N. Cox, eds. Cambridge University Press, Cambridge (2013) Bernstein, Lawrence S., Frank O. Clark and David K. Lynch “Dirty H2 Molecular Clusters as the Source of the DIBs: Their Spectroscopic and Physical Properties” In The Diffuse Interstellar Bands, Proceedings IAU Symposium 297 2013, J. Cami and N. Cox, eds. Cambridge University Press, Cambridge 2013 Lynch, David K., Kenneth W.
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    Appendix: Spectroscopy of Variable Stars As amateur astronomers gain ever-increasing access to professional tools, the science of spectroscopy of variable stars is now within reach of the experienced variable star observer. In this section we shall examine the basic tools used to perform spectroscopy and how to use the data collected in ways that augment our understanding of variable stars. Naturally, this section cannot cover every aspect of this vast subject, and we will concentrate just on the basics of this field so that the observer can come to grips with it. It will be noticed by experienced observers that variable stars often alter their spectral characteristics as they vary in light output. Cepheid variable stars can change from G types to F types during their periods of oscillation, and young variables can change from A to B types or vice versa. Spec­ troscopy enables observers to monitor these changes if their instrumentation is sensitive enough. However, this is not an easy field of study. It requires patience and dedication and access to resources that most amateurs do not possess. Nevertheless, it is an emerging field, and should the reader wish to get involved with this type of observation know that there are some excellent guides to variable star spectroscopy via the BAA and the AAVSO. Some of the workshops run by Robin Leadbeater of the BAA Variable Star section and others such as Christian Buil are a very good introduction to the field. © Springer Nature Switzerland AG 2018 M. Griffiths, Observer’s Guide to Variable Stars, The Patrick Moore 291 Practical Astronomy Series, https://doi.org/10.1007/978-3-030-00904-5 292 Appendix: Spectroscopy of Variable Stars Spectra, Spectroscopes and Image Acquisition What are spectra, and how are they observed? The spectra we see from stars is the result of the complete output in visible light of the star (in simple terms).
  • Tracing Planet-Induced Structures in Circumstellar Disks Using Molecular Lines

    Tracing Planet-Induced Structures in Circumstellar Disks Using Molecular Lines

    Astronomy & Astrophysics manuscript no. ober2015_astro-ph c ESO 2018 November 5, 2018 Tracing planet-induced structures in circumstellar disks using molecular lines F. Ober1, S. Wolf1, A. L. Uribe2; 3 and H. H. Klahr2 1 Institute of Theoretical Physics and Astrophysics, University of Kiel, Leibnizstraße 15, 24118 Kiel, Germany e-mail: [email protected] 2 Max Planck Institute for Astronomy, Königstuhl, 69117 Heidelberg, Germany 3 University of Chicago, The Department of Astronomy and Astrophysik, 5640 S. Ellis Ave, IL 60637 Chicago Received, 17/03/2015 / Accepted, 11/05/2015 ABSTRACT Context. Circumstellar disks are considered to be the birthplace of planets. Specific structures like spiral arms, gaps, and cavities are characteristic indicators of planet-disk interaction. Investigating these structures can provide insights into the growth of protoplanets and the physical properties of the disk. Aims. We investigate the feasibility of using molecular lines to trace planet-induced structures in circumstellar disks. Methods. Based on 3D hydrodynamic simulations of planet-disk interactions obtained with the PLUTO code, we perform self- consistent temperature calculations and produce N-LTE molecular line velocity-channel maps and spectra of these disks using our new N-LTE line radiative transfer code Mol3D. Subsequently, we simulate ALMA observations using the CASA simulator. We consider two nearly face-on inclinations, five disk masses, seven disk radii, and two different typical pre-main-sequence host stars (T Tauri, Herbig Ae) at a distance of 140 pc. We calculate up to 141 individual velocity-channel maps for five molecules/isotopoloques (12C16O, 12C18O, HCO+, HCN, and CS) in a total of 32 rotational transitions to investigate the frequency dependence of the structures indicated above.
  • 12899 (Stsci Edit Number: 0, Created: Monday, July 9, 2012 8:35:02 PM EST) - Overview

    12899 (Stsci Edit Number: 0, Created: Monday, July 9, 2012 8:35:02 PM EST) - Overview

    Proposal 12899 (STScI Edit Number: 0, Created: Monday, July 9, 2012 8:35:02 PM EST) - Overview 12899 - Emission line imaging of the bipolar shell in the Helium Nova V445 Puppis Cycle: 20, Proposal Category: GO (Availability Mode: SUPPORTED) INVESTIGATORS Name Institution E-Mail Dr. Danny Steeghs (PI) (ESA Member) (Contact) The University of Warwick [email protected] Dr. Patrick Woudt (CoI) University of Cape Town [email protected] Dr. Matthew Schurch (CoI) University of Cape Town [email protected] Dr. Margarita Karovska (CoI) (AdminUSPI) Smithsonian Institution Astrophysical Observatory [email protected] Dr. Sumner G. Starrfield (CoI) Arizona State University [email protected] Prof. Thomas R. Marsh (CoI) (ESA Member) The University of Warwick [email protected] Prof. Brian Warner (CoI) University of Cape Town [email protected] Prof. Paul Groot (CoI) (ESA Member) Radboud Universiteit Nijmegen [email protected] VISITS Visit Targets used in Visit Configurations used in Visit Orbits Used Last Orbit Planner Run OP Current with Visit? 01 (1) V-V445-PUP WFC3/UVIS 2 09-Jul-2012 21:34:54.0 yes 2 Total Orbits Used ABSTRACT Explosive detonations on the surfaces of accreting white dwarfs play a key role in establishing viable progenitor pathways towards Type Ia supernova explosions. If the white dwarf is accreting hydrogen deficient material, helium shell-flash driven eruptions can occur on its surface. Thus far only one such helium nova event has been observed in Nova Puppis 2000 = V445 Pup. We have discovered an expanding bipolar shell involving fast moving ejecta of He-rich material surrounding this binary.