Документ взят из кэша поисковой машины. Адрес оригинального документа : http://hea-www.harvard.edu/vlp_m33_public/tpannuti_aas.pdf Дата изменения: Wed Sep 26 23:44:39 2007 Дата индексирования: Mon Oct 1 22:01:51 2012 Кодировка: Поисковые слова: spiral galaxy

Wavelength-Dependent Selection Effects in Searches for SNRs in Nearby Galaxies
Venn diagram depicts optical, radio and X-ray (Chandra) detections of SNRs in five nearby spiral galaxies (M81, M101, NGC 2403, NGC 4736 and NGC 6946) (Limiting LX ? 2-4 в1036 ergs/sec) Little radio/optical overlap, more X-ray/radio overlap than X-ray/optical overlap (27% vs. 8%) Effects of ambient density and confusion? Other biases and selection effects?

Pannuti, Schlegel and Lacey, 2004, AJ, submitted


Venn Diagrams of Detected SNRs in M 33


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XRB/SNR Associations (e.g., MF16 in NGC 6946, MF22 in M81); also, X-ray counterparts to radio and optical SNRs with "discordant" Xray colors IR (Spitzer) and Radio (Single Dish+VLA) complementary data? Pulsar wind nebulae (X-ray sources coincident with discrete radio sources with thermal spectra)? E.g., 7 such associations found in NGC 6946 (Holt et al.)