Chamaeleon SFR

• • Load 2MASS K image covering central stars
• Main window
  • Select ISO image and make contours (default settings)

• • Load 2MASS
• Make sure contours and catalogue are higher in stack, use zoom window to shift 2MASS field of view to select region with ISO contours (2/3 magnification).
  • Note about a dozen ISO sources (YSO, HH objects etc.)

Chamaeleon SFR

Chamaeleon SFR near PMS star HD97048

• Target HD97048

• • Note about a dozen ISO sources (YSO, HH objects etc.)

• • Functions menu in VOPlot
    • VOPlot Create Filters (to exclude points if Kmag error > 0.2)

• In main Aladin window,

• • • HD97048 probably Class II, other objects II and I or II

• • • Use cursor (drag from top left) to select various regions in VOPlot colour-colour plot, e.g. Class III have [J-H]<1.6 and [H-K]<0.4

• Central 3 objects
  • All bright at K-band and ISO 7 um
  • HD97048 maybe more evolved, later class?
  • Or evolving faster - higher mass?

• • HD97048 faint very soft
    • suggests high-mass evolved YSO
  • Two objects above have bluer=harder X-ray colours

• • Other objects with redder=softer X-ray colours
    • suggests low-mass T Tauri stars

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Chamaeleon SFR

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Chamaeleon SFR

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Chamaeleon SFR

• • Hover over HD97048 and other 2 central ISO/2MASS objects
  • In VOPlot window note positions in VOPlot
  • Also select objects

• • • HD97048 probably Class II, other objects II and I or II
  • VOPlot Mode Select
    • Use cursor (drag from top left) to select various regions in VOPlot colour-colour plot, e.g. Class III have [J-H]<1.6 and [H-K]<0.4

Chamaeleon SFR

• Target HD97048
  • Radius 10 arcmin at all times

• • • • make contours (default settings)

• Vizier surveys

• • Note about a dozen ISO sources (YSO, HH objects etc.)

• • Functions menu in VOPlot
    • VOPlot Create Filters (to exclude points if Kmag error > 0.2)
      • name Kaccurate, expression $19<0.2

• • • • name J-H, expression $3-$4
      • name H-K, expression $4-$5
  • Select Y-axis J-H, X-axis H-K, Filter Kaccurate and Plot

• In main Aladin window,

• • Compare with JHK colour-colour regions Haisch et al. 2000 AJ 120 1396 fig. 8
    • HD97048 probably Class II, other objects II and I or II
  • VOPlot Mode Select

• • HD97048 maybe more evolved, later class?
  • Or evolving faster - higher mass?
• Aladin Load VOdemo

• • Load EPN images 0.5-2.0, 2.0-4.5, 4.5-7.5 keV
• Make X-ray RGB image, zoom in on and note
  • HD97048 faint very soft

Chamaeleon SFR

• • • Load ISO CAM01 SE,
      • make contours (default settings)
• Vizier surveys

• • Note about a dozen ISO sources (YSO, HH objects etc.)
• Plugins - VOPlot
  • Functions menu in VOPlot

• • all 3 objects in green boxes
  • Compare with JHK colour-colour regions Haisch et al. 2000 AJ 120 1396 fig. 8
    • HD97048 probably Class II, other objects II and I or II

• • • Use cursor (drag from top left) to select various regions in VOPlot colour-colour plot, e.g. Class III have [J-H]<1.6 and [H-K]<0.4
    • Note distribution in Aladin image, e.g. Class III not ISO-bright.
• Central 3 objects
  • All bright at K-band and ISO 7 um
  • HD97048 maybe more evolved, later class?
  • Or evolving faster - higher mass?

• • XMM image server
  • Load EPN images 0.5-2.0, 2.0-4.5, 4.5-7.5 keV

• • HD97048 faint very soft
    • suggests high-mass evolved YSO
  • Two objects above have bluer=harder X-ray colours

Chamaeleon SFR

• Target HD97048
  • Radius 10 arcmin at all times

• • ISO Images
    • Load ISO CAM01 SE,
      • make contours (default settings)

• Select 2MASS K image as view, overlaid with sources and ISO contours
  • Zoom in to x2
  • Note about a dozen ISO sources (YSO, HH objects etc.)

• • Compare with JHK colour-colour regions Haisch et al. 2000 AJ 120 1396 fig. 8
    • HD97048 probably Class II, other objects II and I or II
  • Mode Select

• • • Note distribution in Aladin image, e.g. Class III not ISO-bright.
• Central 3 objects
  • All bright at K-band and ISO 7 um
  • HD97048 maybe more evolved, later class?
  • Or evolving faster - higher mass?

• • XMM image server
  • Load EPN images 0.5-2.0, 2.0-4.5, 4.5-7.5 keV
• Make X-ray RGB image and note

Chamaeleon SFR

• • Compare with JHK colour-colour regions Haisch et al. 2000 AJ 120 1396 fig. 8
    • HD97048 probably Class II, other objects II and I or II
  • Mode Select

• • • Note distribution in Aladin image, e.g. Class III not ISO-bright.
• Central 3 objects
  • All bright at K-band and ISO 7 um

Chamaeleon SFR

• • Zoom in to x2
  • Note about a dozen ISO sources (YSO, HH objects etc.)
• Plugins - VOPlot

• • • • name Kaccurate, expression $19<0.2
    • Create New Columns (to make colours)
      • name J-H, expression $3-$4

• • HD97048 red
  • all 3 objects in green boxes
  • Compare with JHK colour-colour regions Haisch et al. 2000 AJ 120 1396 fig. 8

• • • HD97048 probably Class II, other objects II and I or II
  • Mode Select
    • Select various regions in VOPlot

Chamaeleon SFR

• In VOPlot window, note
  • HD97048 red
  • all 3 objects in green boxes

• • • HD97048 probably Class II, other objects II and I or II
  • Mode Select
    • Select various regions in VOPlot

Chamaeleon SFR

Also see

There is a group of 3 stars, all fairly red:

Chamaeleon SFR

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