Mel's home page

  • Research Interests

    UNDERGRADUATE RESEARCH

  • Melvyn Wright UG Research 2022.pdf UG Research 2022
  • Black_Holes_and_Massive_Stars An Introduction 28Aug2020
  • Aperture Synthesis Telescopes An Introduction
  • The ALMA View of the OMC1 Explosion in Orion
  • Orion Source I Disk and Outflow Interface
  • Structure_of_the_Source_I_Disk in Orion-KL
  • Magnetic Field Structure of Orion Source I
  • Polarimetric Imaging of the Massive Black Hole, Bromley, Melia and Liu, 2001, ApJ 555, L83
  • The Event Horizon Telescope
  • The M87 Black Hole and Xray jet
  • The M87 Jet
  • Star orbits around the SgrA* black hole
  • CARMA Summer School 2014. CARMA Summer School 2014. pdf file.
  • Millimeter VLBI with ALMA Using the ALMA telescope as part of the millimeter VLBI network
  • CARMA_EHT_PRESENTATION. CARMA_EHT_PRESENTATION. pdf file.
  • Adaptive Real Time Synthesis Telescopes The International Journal of High Performance Computing Applications Volume 26 Issue 4, November 2012
  • The-role-of-magnetic-fields-in-the-formation-of-stars REVIEW: Front.Astron.Space Sci., 13 December 2018

    PUBLICATIONS

  • publications
  • publications 2006-2011
  • Publications_2012-2020
  • Publications_Since_Retirement[2012-2020]

    REAL TIME IMAGING

  • Adaptive Real Time Synthesis Telescopes The International Journal of High Performance Computing Applications Volume 26 Issue 4, November 2012
  • ICCS Workshop Jan2011 RealTime_ICCS_Jan2011.pdf
  • Berkeley DSP workshop Berkeley DSP workshop 16 Sept 2010

    CARMA SUMMER SCHOOL

  • CARMA Summer School 2014. CARMA Summer School 2014. pdf file.
  • CARMA Summer School 2012. CARMA memo 60, 2012. pdf file.
  • CARMA Summer School 2011. CARMA memo 56, 2011. pdf file.
  • CARMA Summer School 2010. CARMA memo 55, 2010. pdf file.
  • CARMA Summer School 2009. CARMA memo 53, 2009. pdf file.
  • CARMA Summer School 2008. CARMA memo 48, 2008. pdf file.
  • CARMA Summer School 2007. CARMA memo 44, 2008. pdf file.

    CARMA MEMOS

  • Bandpass Calibration and Stability. CARMA memo 55, July 2009. pdf file.
  • Aperture Efficiency, Pointing and Primary Beam Calibration. CARMA memo 52, June 2009. compressed ps file.
  • Deconvolving Primary Beam Patterns from Mosaic and Polarization Images. CARMA memo 43, 2008. pdf file.
  • Image Fidelity as a Function of Source Size and Calibration Errors. January 2007. pdf file.
  • CARMA memo 38 Image Fidelity as a Function of Source Size and Calibration Errors.
  • CARMA memo 27 Imaging Simulations with CARMA-23
  • CARMA memo 25 SZA location at CARMA site
  • CARMA memo 24 Antenna Configuration Evaluation
  • CARMA memo 14 CARMA Spectral Line Correlator Requirements
  • CARMA memo 5 Compact Configuration Evaluation for CARMA

    VLBI

  • CARMA_EHT_PRESENTATION. CARMA_EHT_PRESENTATION. pdf file.

    MEMORIALS

  • Don Backer memorial. Don Backer, Berkeley, July 2010.
  • John Baldwin memorial. Baldwin Day, Cambridge, May 2011.

    SKA

  • SKA memo 103 Deconvolving Primary Beam Patterns from SKA Images. 2008. pdf file.
  • SKA Survey Optimization SKA memo 81. 2006.
  • SKA Surveys, Calibration and Imaging Paris 2006. pdf file.
  • Real Time Imaging SKA memo 60. 2005.
  • SKA memo 46 SKA Imaging. abstract - plain text.
  • SKA memo 46 SKA Imaging. 2004.
  • SKA memo 16 SKA model where individual antennas can be correlated to image the full field of view. 2002.

    ALMA

  • Heterogeneous Array Imaging ALMA Single Dish and Array Combination Workshop, 2012
  • ALMA memo 465 Case for interoperability as an ALMA off-line model
  • ALMA memo 464 Comparison of the evaluations of the AIPS++ GILDAS and MIRIAD packages for ALMA off-line data processing
  • ALMA memo 463 ALMA Offline Data Processing Audit of the MIRIAD Package
  • BIMA memo 96 Evaluation of the GILDAS Package for ALMA Off-line Data Processing
  • BIMA memo 95 Evaluation of the MIRIAD Package for ALMA Off-line Data Processing
  • ALMA memo 450 Heterogeneous Imaging with the ALMA Compact Array. 2003
  • ALMA memo 430 Compact Configuration Evaluation - Mosaicing. 2002
  • ALMA memo 428 Compact Configuration Evaluation. 2002
  • ALMA memo 382 MM-VLBI with ALMA, 2001
  • ALMA memo 427 Antenna Position Calibration. 2002
  • ALMA memo 358 Observing Object. 2001.
  • ALMA memo 289 Atmospheric Noise in Single Dish Observations. 2000
  • ALMA memo 282 DYNAMIC SCHEDULING. 1999.
  • ALMA memo 272 IMAGE FIDELITY: IMPLICATIONS FOR ALMA, 1999
  • MM-VLBI ARRAYS memo FUTURE MM-VLBI ARRAYS, 1997
  • ALMA memo fig 1 uv-tracks for 3C273
  • ALMA memo fig 2 uv-tracks for SGRA*

    FIRST IMAGES WITH NEW TELESCOPES

  • M33 HI (Cambridge 1970) M33 HI, Cambridge 1970
  • Circum Nuclear HCN Circum Nuclear Disk, Hat Creek 1987
  • HCN(1-0) [contours] and HCO+ Hat Creek, 2000
  • H42-HCN-OH-NH3 H42 alpha, HCN, NH3 and OH masers.
  • 20cm-HCN-OH-NH3 SgrA East interacting with molecular gas.
  • 6cm-HCN-OH-NH3 SgrA East interacting with molecular gas.
  • dust-HCN-NH3 Circum nuclear disk: Dust, HCN and NH3
  • NH3-HCN-OH-6cm Circum nuclear disk: NH3 and HCN in same velocity range.
  • Hot Spots A&B Cygnus A at 230, 15 and 5 GHz. Hat Creek, 2002
  • Hot Spots D&E Cygnus A at 230, 15 and 5 GHz. Hat Creek, 2002

    SOFTWARE

  • Calculate theoretical rms noise for radio telescopes python script
  • ALMA memo 463 Censored ALMA Offline Data Processing Audit of the MIRIAD Package
  • Introduction to MIRIAD Introduction to MIRIAD
  • ATNF version of the Miriad User's Guide
  • A retrospective view of MIRIAD Sault, R.J., Teuben, P.J., & Wright,M.C.H., 1995, in Astronomical Data Analysis Software and Systems IV, ed. R. Shaw, H.E. Payne, & J.J.E.Hayes, ASP Conf. Ser., 77, 433
  • MIRIAD Timings for 250x250x100 channel Imaging Simulated ALMA data with 60 antennas in configuration 12
  • MIRIAD Timings for 1573x1573x10 channel Imaging Simulated ALMA data with 60 antennas in configuration 29

    ALLEN TELESCOPE ARRAY

  • ATA memo 84 Extended ATA telescope with outrigger stationa. 2009.
  • ATA memo 83 Antenna Gain, Pointing, Primary Beam and Bandpass Calibration. 2009.
  • ATA memo 59 Comparison of imaging performance ATA and VLA. 2003.
  • ATA memo 52 Allen Telescope Array Imaging. 2002.

    ALLEN TELESCOPE ARRAY IMAGES

  • M31 continuum emission at 1.4 GHz HII regions and background continuum sources.
  • M31 HI emission at 1.4 GHz integrated HI emission.
  • M31 HI velocity HI velocity.
  • M33 continuum emission at 1.4 GHz HII regions and background continuum sources.
  • M33 HI emission at 1.4 GHz integrated HI emission.
  • M33 HI velocity HI velocity.

    ALLEN TELESCOPE ARRAY SIMULATED IMAGES

  • CASA at x-band with the ATA Model Image of CASA at 11.2 GHz in 1 minute and 100 MHz. Peak 3.19 Jy/beam, Total Flux 729 Jy.
  • CASA convolved to ATA x-band resolution VLA image of CASA convolved to ATA resolution at 11.2 GHz. Peak 3.20 Jy/beam, Total Flux 732 Jy.
  • CASA ATA - VLA residual at x-band Difference between ATA & VLA images at 11.2 GHz. Max,Min,Rms = 2.5, -3.2, 0.35 mJy
  • CASA 1.5 x real size with the ATA Model Image of CASA scaled up 1.5 x real size. Peak 1.62 Jy/beam, Total Flux 718 Jy
  • CASA 1.5 x real size with the VLA Model Image of CASA scaled up 1.5 x real size. Peak 1.63 Jy/beam, Total Flux 732 Jy
  • CASA 1.5 x residual Shows bowl from missing short spacings. MFS over 400 MHz. Max,Min,Rms = 7.8, -4.1, 1.2 mJy/beam.
  • CASA 2 x real size with the ATA Model Image of CASA scaled up 2 x real size. Peak 0.99 Jy/beam, Total Flux 679 Jy
  • CASA 2 x real size with the VLA Model Image of CASA scaled up 2 x real size. Peak 1.01 Jy/beam, Total Flux 732 Jy
  • CASA 2 x residual Shows bowl from missing short spacings. MFS over 400 MHz. Max,Min,Rms = 25, -14, 4.2 mJy/beam.
  • CASA 2.5 x real size with the ATA Model Image of CASA scaled up 2.5 x real size. Peak 0.66 Jy/beam, Total Flux 561 Jy.
  • CASA 2.5 x real size with the VLA Model Image of CASA scaled up 2.5 x real size. Peak 0.69 Jy/beam, Total Flux 732 Jy.
  • CASA 2.5 x residual Shows bowl from missing short spacings. MFS over 400 MHz. Max,Min,Rms = 96, -60, 14 mJy/beam.
  • CASA 20 x real size with the ATA Mosaic Image of CASA scaled up 20 x real size.
  • CASA 40 x pointing 1 CASA Image illuminated by ATA Primary beam at 1.4 GHz
  • CASA 40 x pointing 7 CASA Image illuminated by ATA Primary beam at 1.4 GHz
  • CASA 40 x real size at declination 30 with the ATA Mosaic MFS Image of CASA scaled up 40 x real size. Peak 0.187 Jy/beam, Total Flux 486 Jy
  • CASA 40 x real size at declination 30 with the VLA Mosaic Image of CASA scaled up 40 x real size. Peak 0.201 Jy/beam, Total Flux 732 Jy
  • CASA 40 x residual at declination 30 ATA - VLA Residual Image of CASA. Max,Min,Rms = 61, -23, 4.8 mJy
  • ATA point source response at declination 30 Point source response with Natural weighting
  • Point source response with 30deg_phase_noise Point source response with 30deg_phase_noise
  • uvplot with 30deg_phase_noise uv-plot with 30deg_phase_noise
  • Point source response after selfcal with 30deg_phase_noise Point source response after selfcal with 30deg_phase_noise
  • NVSS model Point sources convolved with clean response; Max=1.12 Jy/beam; Total Flux = 30.66 Jy

    BIMA MEMO's

  • memo 44 A RECIPE FOR PHASE PREDICTION FROM TOTAL POWER MEASUREMENTS
  • memo 45 BIMA ARRAY RESPONSE TO EXTENDED STRUCTURE, 1996
  • memo 53 DYNAMIC SCHEDULING FOR THE BIMA ARRAY, 1997
  • memo 55 FUTURE MM-VLBI ARRAYS, Wright & Bower, 1997
  • memo 58 DYNAMIC SCHEDULING: Selection criteria & evaluation, Wright & Akeson, 1997
  • memo 59 IMAGING WITH HETEROGENEOUS ARRAYS, 1997
  • memo 60 DYNAMIC SCHEDULING: Implementation at Hat Creek, 1997
  • memo 66 COMMENTS ON ARRAY CONFIGURATIONS, 1998
  • memo 69 NEW ARRAY CONFIGURATIONS FOR HAT CREEK, 1998
  • memo 73 IMAGE FIDELITY, 1999
  • memo 75 Astronomical Imaging with the One Hectare Telescope, 1998
  • memo 78 Atmospheric Phase Correction using Water Vapor Radiometers. 2000
  • BIMA memo 84 CARMA Sensitivity and Correlator Requirements
  • BIMA memo 85 CARMA Calibration Requirements
  • BIMA memo 91 Compact Configuration Evaluation for CARMA
  • BIMA memo 92 Allen Telescope Array Imaging.
  • BIMA memo 93 Characterizing BIMA proposals 2000-2003
  • BIMA memo 95 Evaluation of the MIRIAD Package for ALMA Off-line Data Processing
  • Real Time Imaging - URSI talk URSI, Boulder 2006 pdf file.

    PAPERS

  • 230 GHz cygnus paper Images of the hot spots in Cygnus A at 230 GHz
  • 87 GHz cygnus paper Images of the hot spots in Cygnus A at 87 GHz
  • atmos paper ATMOSPHERIC PHASE NOISE AND APERTURE SYNTHESIS IMAGING AT MILLIMETER WAVELENGTHS
  • orion paper A Multi-line aperture synthesis study of Orion-KL

    MISC

  • Kyesa in the garden at Euclid. Kyesa in the garden at Euclid April 2001, 5.5 yrs old.
  • Fuel Energy Conversion Factors. Fuel Energy Conversion Factors.
  • Email: wright@astro.berkeley.edu