Probing the bottom end of the IMF in orion with Gemini
We present very deep JHK imaging of the Trapezium Cluster obtained with Gemini South/Flamingos and Gemini North/Hokupa'a. These images probe the IMF down to similar to 2 M-Jup in a total area of similar to 8 arcmin(2). Several very faint new planetary mass candidates are detected and sources pr...
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| Format: | Conference item |
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2003
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| _version_ | 1797087515782414336 |
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| author | Lucas, P Roche, P Riddick, F |
| author_facet | Lucas, P Roche, P Riddick, F |
| author_sort | Lucas, P |
| collection | OXFORD |
| description | We present very deep JHK imaging of the Trapezium Cluster obtained with Gemini South/Flamingos and Gemini North/Hokupa'a. These images probe the IMF down to similar to 2 M-Jup in a total area of similar to 8 arcmin(2). Several very faint new planetary mass candidates are detected and sources previously detected with UKIRT are verified. Photometry of 124 point sources in this field produces a Luminosity Function which. drops to zero at K=18.75. Allowing. for modest extinction this corresponds to a possible turn-down in the IMF near 5 Mjup. A minority of PMOs exhibit large K band excesses attributed to hot dust, confirming their extreme youth. Some of the faintest sources are associated with short trails of light of uncertain nature. These may provide a clue to the origin of PMOs, perhaps marking evacuated paths cleared by rapidly moving objects. |
| first_indexed | 2024-03-07T02:36:46Z |
| format | Conference item |
| id | oxford-uuid:a90a252f-198d-48f7-a49a-739629e6430e |
| institution | University of Oxford |
| last_indexed | 2024-03-07T02:36:46Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:a90a252f-198d-48f7-a49a-739629e6430e2022-03-27T03:05:45ZProbing the bottom end of the IMF in orion with GeminiConference itemhttp://purl.org/coar/resource_type/c_5794uuid:a90a252f-198d-48f7-a49a-739629e6430eSymplectic Elements at Oxford2003Lucas, PRoche, PRiddick, FWe present very deep JHK imaging of the Trapezium Cluster obtained with Gemini South/Flamingos and Gemini North/Hokupa'a. These images probe the IMF down to similar to 2 M-Jup in a total area of similar to 8 arcmin(2). Several very faint new planetary mass candidates are detected and sources previously detected with UKIRT are verified. Photometry of 124 point sources in this field produces a Luminosity Function which. drops to zero at K=18.75. Allowing. for modest extinction this corresponds to a possible turn-down in the IMF near 5 Mjup. A minority of PMOs exhibit large K band excesses attributed to hot dust, confirming their extreme youth. Some of the faintest sources are associated with short trails of light of uncertain nature. These may provide a clue to the origin of PMOs, perhaps marking evacuated paths cleared by rapidly moving objects. |
| spellingShingle | Lucas, P Roche, P Riddick, F Probing the bottom end of the IMF in orion with Gemini |
| title | Probing the bottom end of the IMF in orion with Gemini |
| title_full | Probing the bottom end of the IMF in orion with Gemini |
| title_fullStr | Probing the bottom end of the IMF in orion with Gemini |
| title_full_unstemmed | Probing the bottom end of the IMF in orion with Gemini |
| title_short | Probing the bottom end of the IMF in orion with Gemini |
| title_sort | probing the bottom end of the imf in orion with gemini |
| work_keys_str_mv | AT lucasp probingthebottomendoftheimfinorionwithgemini AT rochep probingthebottomendoftheimfinorionwithgemini AT riddickf probingthebottomendoftheimfinorionwithgemini |