Low Mass Stellar Objects: The Early Years Near to Mid Infrared Spectrographic Studies of Protostars and Protoplanetary Disks/Envelopes in Taurus-Auriga

Raffaella De Vita; Gail Zasowski; Raffaella De Vita; Raffaella De Vita; Raffaella De Vita

Low Mass Stellar Objects: The Early Years Near to Mid Infrared Spectrographic Studies of Protostars and Protoplanetary Disks/Envelopes in Taurus-Auriga

ORAL

Abstract

The study of young stellar objects (YSOs), and their accompanying dust/gas envelopes and disks is a significant and rapidly growing area in the field of astrophysics. Using spectroscopic data from the new Spitzer Space Telescope, I analyzed several Class I protostellar sources to identify characteristics that could be used in modeling these objects. First, the spectra were extracted from the raw Spitzer data and put into usable format. Then each source was fitted with representations of the spectral continua; these were used to calculate optical depths of the major peaks and features. Plotting these data revealed several trends, such as the close correlation between H$_{2}$O and CH$_{3}$OH ices. Laboratory ice spectra were fit to the strong 15.2 $\mu $m CO$_{2}$ feature of some objects. The apparent crystalline structure of some of these CO$_{2}$ features was studied. Much work remains to be done before a comprehensive understanding of these sources is reached.

April 16, 2005, 1:30 PM – April 16, 2005, 1:42 PM

Authors

Raffaella De Vita

Kent State University, Jefferson Lab, Ohio University, Mainz University, Mainz, Germany, Max-Planck-Institute for Nuclear Physics, Heidelberg, Germany, University of Washington, Noncommercial Partnership ``Scientific Instruments,'' Moscow, Russia, Lucent Technologies, North-West Technical University, St. Petersburg, Russia, Indiana University-Purdue University Indianapolis, Purdue University, University of Florida, Wabash College and Purdue University, University of Oregon, Garnett McKeen Lab, Inc., Korea Research Institute of Standards and Science, Daejeon, South Korea, 305-600, Department of Physics, Lab. of Solid State Microstructure, Nanjing University, Nanjing, 200008, China, Department of Physics, Hampton University, Hampton, VA 23668, NESB, NASA Langley Research Center, Hampton, VA 23681, Korea Research Institute of Stardards and Science, Daejeon, South Korea, 305-600, Department of Chemical Engineering, Sogang University, South Korea, 121-742, Indiana University, University of Chicago, LBNL, BNL/NSLS, KEK, Fermi National Accelerator Laboratory, LANL, University of Maryland, NIST, HMI, Harvard University, NCSU, Department of Physics and Astronomy, University of Nebraska, University of Southern California, University of California at Los Angeles, Stanford Linear Accelerator Center, Institute for Advanced Physics, Konkuk University, Korea, SUNY College at Oneonta, Department of Physics, University of Wisconsin-Whitewater, Whitewater WI 53190, Cyclotron Institute, Texas A\&M University, College Station, TX, University of Texas at El Paso, University of Buenos Aires, Cyclotron Institute, Texas A\&M University, College Station, TX 77843, Simon Bolivar University, Caracas, Venezuela, Warsaw University, Warsaw, Poland, Institut de Recherches Subatomiques, Strasbourg, France, Florida State University, Harvard-Smithsonian CfA, CENPA University of Washington, Pasadena City College, California State University, Northridge, California State University, Dominguez Hills, Chinese University of Hong Kong, Jet Propulsion Lab, California Institute of Technology, University of California, Irvine, Instituto de F\'isica, UNAM, University of Toronto, Friedrich-Schiller-Universitaet Jena, Pennsylvania State University, NIH, Stanford University, CNR, Italy, University of Texas, Austin, University of Nevada, Reno, University of Wisconsin-Madison, Hanseo University, Division of Materials Science and Technology, KIST, Seoul, 130-791, Korea, Department of Physics, Kangwon National University, Chuncheon, 200-701, Korea, Department of Techno-marketing, Mokwon University, Taejeon, 301-729, Korea, Institute of Physics and Applied Physics, Yonsei University, Seoul, 120-749, Korea, UNAM, Mexico, JINR, Dubna, Univ. of Notre-Dame, ANL, SUNY at Stony Brook, Lund U., ORNL, Washington U., Warsaw, Poland, Saclay, France, Boston University, National Institute for Standards and Technology, Boulder, Los Alamos National Laboratory, Yale University, Florida International University, MIT, Saint Mary's University, TRI-University Meson Facility, Institute of Nuclear Physics, Prague, Czech Republic, Institute of Physics and Nuclear Engineering, Bucharest, Romania, Cyclotron Institute, Texas A\&M Univ., Physics Division, Argonne National Laboratory, Wright Nuclear Structure Laboratory, Yale University, Tenn. Tech. Univ., Arizona State Univ., Ohio Univ., Tennessee Technologival Univ., ORNL Physics Division, Laboratory for High Energy Astrophysics, NASA Goddard Space Flight Center, University of California, CEA, LLNL, Penn State Altoona, NC A&T State University, TUNL, NASA Langley Research Center, University of Iowa, UMD \& NASA/GSFC, NRC \& NASA/GSFC, NASA/GSFC, Academy at UAH, Oak Ridge National Laboratory, North Carolina State University, Union College, University of Hamburg, Iowa State University, Drake University, Lawrence Livermore National Laboratory, University of Arizona, UNC, Chapel Hill, NC, Tennessee Tech., Cookeville, TN, Rutgers Univ., New Brunswick, NJ, ORNL, Oak Ridge, TN, ORAU, Oak Ridge, TN, Collegium of Natural Sciences, Eckerd College, RIKEN (Institute of Physical and Chemical Research), Department of Physics, Rikkyo University, Department of Physics, University of Tokyo, Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, Tokyo Inst. of Tech., Rikkyo Univ., Univ. of Tokyo, RIKEN, NSCL, Michigan State University, Dept. of Physics, University of Surrey, Guildford, UK, National Superconducting Cyclotron Laboratory, Michigan State University, University of Surrey, UK, IRES CNRS Strasbourg, Planetary Science Institute, Steward Observatory, University of Oklahoma, Vatican Observatory, University of Rochester, UIUC, Washington State University, Johns Hopkins University, Istituto Nazionale di Fisica Nucleare-Genova
Gail Zasowski

University of Tennessee--Knoxville
Raffaella De Vita

Kent State University, Jefferson Lab, Ohio University, Mainz University, Mainz, Germany, Max-Planck-Institute for Nuclear Physics, Heidelberg, Germany, University of Washington, Noncommercial Partnership ``Scientific Instruments,'' Moscow, Russia, Lucent Technologies, North-West Technical University, St. Petersburg, Russia, Indiana University-Purdue University Indianapolis, Purdue University, University of Florida, Wabash College and Purdue University, University of Oregon, Garnett McKeen Lab, Inc., Korea Research Institute of Standards and Science, Daejeon, South Korea, 305-600, Department of Physics, Lab. of Solid State Microstructure, Nanjing University, Nanjing, 200008, China, Department of Physics, Hampton University, Hampton, VA 23668, NESB, NASA Langley Research Center, Hampton, VA 23681, Korea Research Institute of Stardards and Science, Daejeon, South Korea, 305-600, Department of Chemical Engineering, Sogang University, South Korea, 121-742, Indiana University, University of Chicago, LBNL, BNL/NSLS, KEK, Fermi National Accelerator Laboratory, LANL, University of Maryland, NIST, HMI, Harvard University, NCSU, Department of Physics and Astronomy, University of Nebraska, University of Southern California, University of California at Los Angeles, Stanford Linear Accelerator Center, Institute for Advanced Physics, Konkuk University, Korea, SUNY College at Oneonta, Department of Physics, University of Wisconsin-Whitewater, Whitewater WI 53190, Cyclotron Institute, Texas A\&M University, College Station, TX, University of Texas at El Paso, University of Buenos Aires, Cyclotron Institute, Texas A\&M University, College Station, TX 77843, Simon Bolivar University, Caracas, Venezuela, Warsaw University, Warsaw, Poland, Institut de Recherches Subatomiques, Strasbourg, France, Florida State University, Harvard-Smithsonian CfA, CENPA University of Washington, Pasadena City College, California State University, Northridge, California State University, Dominguez Hills, Chinese University of Hong Kong, Jet Propulsion Lab, California Institute of Technology, University of California, Irvine, Instituto de F\'isica, UNAM, University of Toronto, Friedrich-Schiller-Universitaet Jena, Pennsylvania State University, NIH, Stanford University, CNR, Italy, University of Texas, Austin, University of Nevada, Reno, University of Wisconsin-Madison, Hanseo University, Division of Materials Science and Technology, KIST, Seoul, 130-791, Korea, Department of Physics, Kangwon National University, Chuncheon, 200-701, Korea, Department of Techno-marketing, Mokwon University, Taejeon, 301-729, Korea, Institute of Physics and Applied Physics, Yonsei University, Seoul, 120-749, Korea, UNAM, Mexico, JINR, Dubna, Univ. of Notre-Dame, ANL, SUNY at Stony Brook, Lund U., ORNL, Washington U., Warsaw, Poland, Saclay, France, Boston University, National Institute for Standards and Technology, Boulder, Los Alamos National Laboratory, Yale University, Florida International University, MIT, Saint Mary's University, TRI-University Meson Facility, Institute of Nuclear Physics, Prague, Czech Republic, Institute of Physics and Nuclear Engineering, Bucharest, Romania, Cyclotron Institute, Texas A\&M Univ., Physics Division, Argonne National Laboratory, Wright Nuclear Structure Laboratory, Yale University, Tenn. Tech. Univ., Arizona State Univ., Ohio Univ., Tennessee Technologival Univ., ORNL Physics Division, Laboratory for High Energy Astrophysics, NASA Goddard Space Flight Center, University of California, CEA, LLNL, Penn State Altoona, NC A&T State University, TUNL, NASA Langley Research Center, University of Iowa, UMD \& NASA/GSFC, NRC \& NASA/GSFC, NASA/GSFC, Academy at UAH, Oak Ridge National Laboratory, North Carolina State University, Union College, University of Hamburg, Iowa State University, Drake University, Lawrence Livermore National Laboratory, University of Arizona, UNC, Chapel Hill, NC, Tennessee Tech., Cookeville, TN, Rutgers Univ., New Brunswick, NJ, ORNL, Oak Ridge, TN, ORAU, Oak Ridge, TN, Collegium of Natural Sciences, Eckerd College, RIKEN (Institute of Physical and Chemical Research), Department of Physics, Rikkyo University, Department of Physics, University of Tokyo, Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, Tokyo Inst. of Tech., Rikkyo Univ., Univ. of Tokyo, RIKEN, NSCL, Michigan State University, Dept. of Physics, University of Surrey, Guildford, UK, National Superconducting Cyclotron Laboratory, Michigan State University, University of Surrey, UK, IRES CNRS Strasbourg, Planetary Science Institute, Steward Observatory, University of Oklahoma, Vatican Observatory, University of Rochester, UIUC, Washington State University, Johns Hopkins University, Istituto Nazionale di Fisica Nucleare-Genova
Raffaella De Vita

Kent State University, Jefferson Lab, Ohio University, Mainz University, Mainz, Germany, Max-Planck-Institute for Nuclear Physics, Heidelberg, Germany, University of Washington, Noncommercial Partnership ``Scientific Instruments,'' Moscow, Russia, Lucent Technologies, North-West Technical University, St. Petersburg, Russia, Indiana University-Purdue University Indianapolis, Purdue University, University of Florida, Wabash College and Purdue University, University of Oregon, Garnett McKeen Lab, Inc., Korea Research Institute of Standards and Science, Daejeon, South Korea, 305-600, Department of Physics, Lab. of Solid State Microstructure, Nanjing University, Nanjing, 200008, China, Department of Physics, Hampton University, Hampton, VA 23668, NESB, NASA Langley Research Center, Hampton, VA 23681, Korea Research Institute of Stardards and Science, Daejeon, South Korea, 305-600, Department of Chemical Engineering, Sogang University, South Korea, 121-742, Indiana University, University of Chicago, LBNL, BNL/NSLS, KEK, Fermi National Accelerator Laboratory, LANL, University of Maryland, NIST, HMI, Harvard University, NCSU, Department of Physics and Astronomy, University of Nebraska, University of Southern California, University of California at Los Angeles, Stanford Linear Accelerator Center, Institute for Advanced Physics, Konkuk University, Korea, SUNY College at Oneonta, Department of Physics, University of Wisconsin-Whitewater, Whitewater WI 53190, Cyclotron Institute, Texas A\&M University, College Station, TX, University of Texas at El Paso, University of Buenos Aires, Cyclotron Institute, Texas A\&M University, College Station, TX 77843, Simon Bolivar University, Caracas, Venezuela, Warsaw University, Warsaw, Poland, Institut de Recherches Subatomiques, Strasbourg, France, Florida State University, Harvard-Smithsonian CfA, CENPA University of Washington, Pasadena City College, California State University, Northridge, California State University, Dominguez Hills, Chinese University of Hong Kong, Jet Propulsion Lab, California Institute of Technology, University of California, Irvine, Instituto de F\'isica, UNAM, University of Toronto, Friedrich-Schiller-Universitaet Jena, Pennsylvania State University, NIH, Stanford University, CNR, Italy, University of Texas, Austin, University of Nevada, Reno, University of Wisconsin-Madison, Hanseo University, Division of Materials Science and Technology, KIST, Seoul, 130-791, Korea, Department of Physics, Kangwon National University, Chuncheon, 200-701, Korea, Department of Techno-marketing, Mokwon University, Taejeon, 301-729, Korea, Institute of Physics and Applied Physics, Yonsei University, Seoul, 120-749, Korea, UNAM, Mexico, JINR, Dubna, Univ. of Notre-Dame, ANL, SUNY at Stony Brook, Lund U., ORNL, Washington U., Warsaw, Poland, Saclay, France, Boston University, National Institute for Standards and Technology, Boulder, Los Alamos National Laboratory, Yale University, Florida International University, MIT, Saint Mary's University, TRI-University Meson Facility, Institute of Nuclear Physics, Prague, Czech Republic, Institute of Physics and Nuclear Engineering, Bucharest, Romania, Cyclotron Institute, Texas A\&M Univ., Physics Division, Argonne National Laboratory, Wright Nuclear Structure Laboratory, Yale University, Tenn. Tech. Univ., Arizona State Univ., Ohio Univ., Tennessee Technologival Univ., ORNL Physics Division, Laboratory for High Energy Astrophysics, NASA Goddard Space Flight Center, University of California, CEA, LLNL, Penn State Altoona, NC A&T State University, TUNL, NASA Langley Research Center, University of Iowa, UMD \& NASA/GSFC, NRC \& NASA/GSFC, NASA/GSFC, Academy at UAH, Oak Ridge National Laboratory, North Carolina State University, Union College, University of Hamburg, Iowa State University, Drake University, Lawrence Livermore National Laboratory, University of Arizona, UNC, Chapel Hill, NC, Tennessee Tech., Cookeville, TN, Rutgers Univ., New Brunswick, NJ, ORNL, Oak Ridge, TN, ORAU, Oak Ridge, TN, Collegium of Natural Sciences, Eckerd College, RIKEN (Institute of Physical and Chemical Research), Department of Physics, Rikkyo University, Department of Physics, University of Tokyo, Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, Tokyo Inst. of Tech., Rikkyo Univ., Univ. of Tokyo, RIKEN, NSCL, Michigan State University, Dept. of Physics, University of Surrey, Guildford, UK, National Superconducting Cyclotron Laboratory, Michigan State University, University of Surrey, UK, IRES CNRS Strasbourg, Planetary Science Institute, Steward Observatory, University of Oklahoma, Vatican Observatory, University of Rochester, UIUC, Washington State University, Johns Hopkins University, Istituto Nazionale di Fisica Nucleare-Genova
Raffaella De Vita

Kent State University, Jefferson Lab, Ohio University, Mainz University, Mainz, Germany, Max-Planck-Institute for Nuclear Physics, Heidelberg, Germany, University of Washington, Noncommercial Partnership ``Scientific Instruments,'' Moscow, Russia, Lucent Technologies, North-West Technical University, St. Petersburg, Russia, Indiana University-Purdue University Indianapolis, Purdue University, University of Florida, Wabash College and Purdue University, University of Oregon, Garnett McKeen Lab, Inc., Korea Research Institute of Standards and Science, Daejeon, South Korea, 305-600, Department of Physics, Lab. of Solid State Microstructure, Nanjing University, Nanjing, 200008, China, Department of Physics, Hampton University, Hampton, VA 23668, NESB, NASA Langley Research Center, Hampton, VA 23681, Korea Research Institute of Stardards and Science, Daejeon, South Korea, 305-600, Department of Chemical Engineering, Sogang University, South Korea, 121-742, Indiana University, University of Chicago, LBNL, BNL/NSLS, KEK, Fermi National Accelerator Laboratory, LANL, University of Maryland, NIST, HMI, Harvard University, NCSU, Department of Physics and Astronomy, University of Nebraska, University of Southern California, University of California at Los Angeles, Stanford Linear Accelerator Center, Institute for Advanced Physics, Konkuk University, Korea, SUNY College at Oneonta, Department of Physics, University of Wisconsin-Whitewater, Whitewater WI 53190, Cyclotron Institute, Texas A\&M University, College Station, TX, University of Texas at El Paso, University of Buenos Aires, Cyclotron Institute, Texas A\&M University, College Station, TX 77843, Simon Bolivar University, Caracas, Venezuela, Warsaw University, Warsaw, Poland, Institut de Recherches Subatomiques, Strasbourg, France, Florida State University, Harvard-Smithsonian CfA, CENPA University of Washington, Pasadena City College, California State University, Northridge, California State University, Dominguez Hills, Chinese University of Hong Kong, Jet Propulsion Lab, California Institute of Technology, University of California, Irvine, Instituto de F\'isica, UNAM, University of Toronto, Friedrich-Schiller-Universitaet Jena, Pennsylvania State University, NIH, Stanford University, CNR, Italy, University of Texas, Austin, University of Nevada, Reno, University of Wisconsin-Madison, Hanseo University, Division of Materials Science and Technology, KIST, Seoul, 130-791, Korea, Department of Physics, Kangwon National University, Chuncheon, 200-701, Korea, Department of Techno-marketing, Mokwon University, Taejeon, 301-729, Korea, Institute of Physics and Applied Physics, Yonsei University, Seoul, 120-749, Korea, UNAM, Mexico, JINR, Dubna, Univ. of Notre-Dame, ANL, SUNY at Stony Brook, Lund U., ORNL, Washington U., Warsaw, Poland, Saclay, France, Boston University, National Institute for Standards and Technology, Boulder, Los Alamos National Laboratory, Yale University, Florida International University, MIT, Saint Mary's University, TRI-University Meson Facility, Institute of Nuclear Physics, Prague, Czech Republic, Institute of Physics and Nuclear Engineering, Bucharest, Romania, Cyclotron Institute, Texas A\&M Univ., Physics Division, Argonne National Laboratory, Wright Nuclear Structure Laboratory, Yale University, Tenn. Tech. Univ., Arizona State Univ., Ohio Univ., Tennessee Technologival Univ., ORNL Physics Division, Laboratory for High Energy Astrophysics, NASA Goddard Space Flight Center, University of California, CEA, LLNL, Penn State Altoona, NC A&T State University, TUNL, NASA Langley Research Center, University of Iowa, UMD \& NASA/GSFC, NRC \& NASA/GSFC, NASA/GSFC, Academy at UAH, Oak Ridge National Laboratory, North Carolina State University, Union College, University of Hamburg, Iowa State University, Drake University, Lawrence Livermore National Laboratory, University of Arizona, UNC, Chapel Hill, NC, Tennessee Tech., Cookeville, TN, Rutgers Univ., New Brunswick, NJ, ORNL, Oak Ridge, TN, ORAU, Oak Ridge, TN, Collegium of Natural Sciences, Eckerd College, RIKEN (Institute of Physical and Chemical Research), Department of Physics, Rikkyo University, Department of Physics, University of Tokyo, Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, Tokyo Inst. of Tech., Rikkyo Univ., Univ. of Tokyo, RIKEN, NSCL, Michigan State University, Dept. of Physics, University of Surrey, Guildford, UK, National Superconducting Cyclotron Laboratory, Michigan State University, University of Surrey, UK, IRES CNRS Strasbourg, Planetary Science Institute, Steward Observatory, University of Oklahoma, Vatican Observatory, University of Rochester, UIUC, Washington State University, Johns Hopkins University, Istituto Nazionale di Fisica Nucleare-Genova