Search Publications
“Superluminal” FITS File Processing on Multiprocessors: Zero Time Endian Conversion Technique
Eguchi, Satoshi
The FITS is the standard file format in astronomy, and it has been extended to meet the astronomical needs of the day. However, astronomical datasets have been inflating year by year. In the case of the ALMA telescope, a ∼TB-scale four-dimensional data cube may be produced for one target. Considering that typical Internet bandwidth is tens of MB/s…
Nitrogen Abundances and the Distance Moduli of the Pleiades and Hyades
King, Jeremy R.; Boesgaard, Ann M.; Chen, Yu +1 more
Recent reanalyses of HIPPARCOS parallax data confirm a previously noted discrepancy with the Pleiades distance modulus estimated from main-sequence fitting in the color-magnitude diagram. One proposed explanation of this distance modulus discrepancy is a Pleiades He abundance that is significantly larger than the Hyades value. We suggest that, bas…
Additional Newly Identified Star Clusters in M31
Krienke, O. Karl; Hodge, Paul W.
Using the HST archives, we have searched portions of the southern half and northwest quarter of the Andromeda Galaxy (M 31, NGC 224) for previously unrecognized star clusters. The result is a table of the characteristics of 71 newly identified star clusters. Most are moderately faint, low-mass clusters. Absolute magnitudes range from M(V) = -6.3 t…