Browsing FAS Scholarly Articles by Author "Goodman, Alyssa A."

Now showing items 1-20 of 22

    • A Bubbling Nearby Molecular Cloud: Complete Shells in Perseus 

      Arce, Héctor G.; Borkin, Michelle A.; Goodman, Alyssa A.; Pineda, Jaime E.; Beaumont, Christopher N. (American Astronomical Society, 2011)
      We present a study of the shells (and bubbles) in the Perseus molecular cloud using the COMPLETE survey large-scale (CO)-C-12(1-0) and (CO)-C-13(1-0) maps. The 12 shells reported here are spread throughout most of the ...

    • A COMPLETE Look at the Use of IRAS Emission Maps to Estimate Extinction and Dust Temperature 

      Schnee, Scott L.; Ridge, Naomi A.; Goodman, Alyssa A.; Li, Jason G. (American Astronomical Society, 2005)
      We have created new dust temperature and column density maps of Perseus, Ophiuchus, and Serpens using 60 and 100 mu m data from the Improved Reprocessing of the IRAS Survey ( IRIS) recalibration of Infrared Astronomical ...

    • An Extinction Study of the Taurus Dark Cloud Complex 

      Arce, Hector G.; Goodman, Alyssa A. (American Astronomical Society, 1999)
      We present a study of the detailed distribution of extinction in a region of the Taurus dark cloud complex. Our study uses new BVR images of the region, spectral classification data for 95 stars, and IRAS Sky Survey Atlas ...

    • Bow Shocks, Wiggling Jets, and Wide‐Angle Winds: A High‐Resolution Study of the Entrainment Mechanism of the PV Cephei Molecular (CO) Outflow 

      Arce, Hector G.; Goodman, Alyssa A. (American Astronomical Society, 2002)
      We present a new set of high-resolution molecular-line maps of the gas immediately surrounding various Herbig-Haro (HH) knots of the giant HH flow HH 315 from the young star PV Cephei. The observations, aimed at studying ...

    • Classifying Structures in the Interstellar Medium with Support Vector Machines: The G16.05-0.57 Supernova Remnant 

      Beaumont, Christopher N.; Williams, Jonathan P.; Goodman, Alyssa A. (American Astronomical Society, 2011)
      We apply Support Vector Machines (SVMs)-a machine learning algorithm-to the task of classifying structures in the interstellar medium (ISM). As a case study, we present a position-position-velocity (PPV) data cube of (12)CO ...

    • Cloudshine: New Light on Dark Clouds 

      Foster, Jonathan B.; Goodman, Alyssa A.; Foster, Jonathan; Goodman, Alyssa (American Astronomical Society, 2005)
      We present new deep near-infrared images of dark clouds in the Perseus molecular complex. These images show beautiful extended emission that we model as scattered ambient starlight and name "cloudshine." The brightness and ...

    • CO Isotopologues in the Perseus Molecular Cloud Complex: theX‐factor and Regional Variations 

      Pineda, Jaime E.; Caselli, Paola; Goodman, Alyssa A. (American Astronomical Society, 2008-05-20)

    • Coherence in Dense Cores. II. The Transition to Coherence 

      Goodman, Alyssa A.; Barranco, Joseph A.; Wilner, David J.; Heyer, Mark H. (American Astronomical Society, 1998)
      After studying how line width depends on spatial scale in low-mass star-forming regions, we propose that "dense cores" (Myers & Benson 1983) represent an inner scale of a self-similar process that characterizes larger ...

    • Hunting Galaxies to (and for) Extinction 

      Foster, Jonathan B.; Roman-Zuniga, Carlos G.; Goodman, Alyssa A.; Lada, Elizabeth A.; Alves, Joao (American Astronomical Society, 2008)

    • Kinematics of the Ursa Major Molecular Clouds 

      Pound, Marc W.; Goodman, Alyssa A. (American Astronomical Society, 1997)
      We present a kinematic analysis of the atomic and molecular gas in the Ursa Major molecular clouds. The analysis is based on a new CO survey of the complex made with linear resolution of 0.05 pc and existing H I observations.The ...

    • Measuring Galactic Extinction: A Test 

      Arce, Héctor G.; Goodman, Alyssa A. (American Astronomical Society, 1999)
      We test the recently published all-sky reddening map of Schlegel, Finkbeiner, & Davis (hereafter SFD) using the extinction study of a region in the Taurus dark cloud complex by Arce & Goodman (hereafter AG). In ...

    • On the Efficiency of Grain Alignment in Dark Clouds 

      Lazarian, A.; Goodman, Alyssa A.; Myers, Philip C. (American Astronomical Society, 1997)
      A quantitative analysis of grain alignment in the filamentary dark cloud L1755 in Ophiuchus is presented. We show that the observed decrease of the polarization-to-extinction ratio for the inner parts of this quiescent ...

    • Radiation-hydrodynamic Simulations of Protostellar Outflows: Synthetic Observations and Data Comparisons 

      Offner, Stella S. R.; Lee, Eve J.; Goodman, Alyssa A.; Arce, Héctor (American Astronomical Society, 2011)
      We present results from three-dimensional, self-gravitating, radiation-hydrodynamic simulations of low-mass protostellar outflows. We construct synthetic observations in (12)CO in order to compare with observed outflows ...

    • The COMPLETE Nature of the Warm Dust Shell in Perseus 

      Ridge, Naomi A.; Schnee, Scott L.; Goodman, Alyssa A.; Foster, Jonathan B. (American Astronomical Society, 2006)
      The Perseus molecular cloud complex is a greater than or similar to 30 pc long chain of molecular clouds most well known for the two star-forming clusters NGC 1333 and IC 348 and the well-studied outflow source in B5. ...

    • The Effects of Noise and Sampling on the Spectral Correlation Function 

      Padoan, Paolo; Rosolowsky, Erik W.; Goodman, Alyssa A. (American Astronomical Society, 2001)
      The effects of noise and sampling on the spectral correlation function (SCF) introduced by Rosolowsky and coworkers are studied using observational data, numerical simulations of magneto-hydrodynamic turbulence, and simple ...

    • The Enigmatic Core L1451-mm: A First Hydrostatic Core? Or a Hidden Vello? 

      Pineda, Jaime E.; Arce, Héctor G.; Schnee, Scott; Goodman, Alyssa A.; Bourke, Tyler; Foster, Jonathan B.; Robitaille, Thomas; Tanner, Joel; Kauffmann, Jens; Tafalla, Mario; Caselli, Paola; Anglada, Guillem (American Astronomical Society, 2011)
      We present the detection of a dust continuum source at 3 mm (CARMA) and 1.3 mm (Submillimeter Array, SMA), and (12)CO (2-1) emission (SMA) toward the L1451-mm dense core. These detections suggest a compact object and an ...

    • The Episodic, Precessing Giant Molecular Outflow from IRAS 04239+2436 (HH 300) 

      Arce, Hector G.; Goodman, Alyssa A. (American Astronomical Society, 2001)
      We present the first set of detailed molecular-line maps of the region associated with the giant Herbig-Haro flow HH 300 from the young star IRAS 04239 + 2436. Our results indicate that the red lobe of the HH 300 flow is ...

    • The Great PV Cephei Outflow: A Case Study in Outflow‐Cloud Interaction 

      Arce, Hector G.; Goodman, Alyssa A. (American Astronomical Society, 2002)
      We present a set of detailed molecular-line maps of the region associated with the giant Herbig-Haro flow HH 315 from the young star PV Cephei, aimed at studying the outflow-cloud interaction. Our study clearly shows that ...

    • The Polarizing Power of the Interstellar Medium in Taurus 

      Arce, Héctor G.; Goodman, Alyssa A.; Bastien, Pierre; Manset, Nadine; Sumner, Matthew (American Astronomical Society, 1998)
      We present a study of the polarizing power of dust in cold dense regions (dark clouds) compared with that of dust in the general interstellar medium (ISM), Our study uses new polarimetric, optical, and spectral classification ...

    • The Spectral Correlation Function of Molecular Clouds: A Statistical Test for Theoretical Models 

      Padoan, Paolo; Goodman, Alyssa A.; Juvela, Mika (American Astronomical Society, 2003)
      We compute the spectral correlation function (SCF) of (CO)-C-13 J=1-0 maps of molecular cloud complexes. The SCF is a power law over approximately an order of magnitude in spatial separation in every map. The power-law ...