{ "id": "1108.4187", "version": "v2", "published": "2011-08-21T16:11:34.000Z", "updated": "2011-09-30T22:19:18.000Z", "title": "Simulation of a strategy for the pixel lensing of M87 using the Hubble Space Telescope", "authors": [ "Sedighe Sajadian", "Sohrab Rahvar" ], "comment": "8 pages, 9 figures, accepted in MNRAS", "categories": [ "astro-ph.GA", "astro-ph.CO" ], "abstract": "In this work, we propose a new strategy for the pixel-lensing observation of M87 in the Virgo cluster using the {\\it Hubble Space Telescope} (HST). In contrast to the previous observational strategy by Baltz et al., we show that a few days intensive observation with the duration of $\\sim 90 $min in each HST orbit will increase the observational efficiency of the high-magnification events by more than one order of magnitude. We perform a Monte-Carlo simulation for this strategy and we show that the number of high magnification microlensing events will increase at the rate of 4.2 event per day with a typical transit time scale of 16 h. We also examine the possibility of observing mini-halo dark matter structures using pixel lensing.", "revisions": [ { "version": "v2", "updated": "2011-09-30T22:19:18.000Z" } ], "analyses": { "keywords": [ "hubble space telescope", "pixel lensing", "simulation", "observing mini-halo dark matter structures", "typical transit time scale" ], "tags": [ "journal article" ], "publication": { "doi": "10.1111/j.1365-2966.2011.19671.x", "journal": "Monthly Notices of the Royal Astronomical Society", "year": 2012, "month": "Jan", "volume": 419, "number": 1, "pages": 124 }, "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "inspire": 924642, "adsabs": "2012MNRAS.419..124S" } } }