The AMANDA Neutrino Telescope: Principle of Operation and First Results

AMANDA is a high-energy neutrino telescope presently under construction at the geographical South Pole. In the Antarctic summer 1995/96, an array of 80 optical modules (OMs) arranged on 4 strings (AMANDA-B4) was deployed at depths between 1.5 and 2 km. In this paper we describe the design and performance of the AMANDA-B4 prototype, based on data collected between February and November 1996. Monte Carlo simulations of the detector response to down-going atmospheric muon tracks show that the global behavior of the detector is understood. We describe the data analysis method and present first results on atmospheric muon reconstruction and separation of neutrino candidates. The AMANDA array was upgraded with 216 OMs on 6 new strings in 1996/97 (AMANDA-B10), and 122 additional OMs on 3 strings in 1997/98.Comment: 36 pages, 23 figures, submitted to Astroparticle Physic

Results from the Antarctic Muon and Neutrino Detector Array (AMANDA)

We show new results from both the older and newer incarnations of AMANDA (AMANDA-B10 and AMANDA-II, respectively). These results demonstrate that AMANDA is a functioning, multipurpose detector with significant physics and astrophysics reach. They include a new higher-statistics measurement of the atmospheric muon neutrino flux and preliminary results from searches for a variety of sources of ultrahigh energy neutrinos: generic point sources, gamma-ray bursters and diffuse sources producing muons in the detector, and diffuse sources producing electromagnetic or hadronic showers in or near the detector.Comment: Invited talk at the XXth International Conference on Neutrino Physics and Astrophysics (Neutrino 2002), Munich, Germany, May 25-30, 200

Rethink #

Watching anyone struggle with mental health disorders should never be funny- and yet, in some instances, that’s exactly how it is viewed. Recently, celebrity Amanda Bynes was involuntarily committed to psychiatric hold for the second time in a year. This was following a series of very public tweets which clearly show instability in her mental health. One tweet in particular regarding a microchip she believes was implanted in her brain is markedly delusional. The media and public, however, have been sensationalizing and demoralizing her condition by treating it as just another piece of shocking celebrity news. Headlines like “Amanda Bynes’ craziest tweets”, “Amanda Bynes’ Odd Behavior Continues”, and “Amanda Bynes goes wild on twitter” are trivializing a serious situation. Any person who is involuntarily placed in a psychiatric hospital needs- and deserves- sympathy and understanding, so why is Bynes being viewed as a spectacle? [excerpt

From AMANDA to IceCube

The first string of the neoteric high energy neutrino telescope IceCube successfully began operating in January 2005. It is anticipated that upon completion the new detector will vastly increase the sensitivity and extend the reach of AMANDA to higher energies. A discussion of the IceCube's discovery potential for extra-terrestrial neutrinos, together with the prospects of new physics derived from the ongoing AMANDA research will be the focus of this paper. Preliminary results of the first antarctic high energy neutrino telescope AMANDA searching in the muon neutrino channel for localized and diffuse excess of extra-terrestrial neutrinos will be reviewed using data collected between 2000 and 2003. Neutrino flux limits obtained with the all-flavor dedicated UHE and cascade analyses will be described. A first neutrino spectrum above one TeV in agreement with atmospheric neutrino flux expectations and no extra-terrestrial contribution will be presented, followed by a discussion of a limit for neutralino CDM candidates annihilating in the center of the Sun.Comment: 15 pages, 8 figures Invited talk contribution at 5th International Conference on Non-accelerator New Physics (NANP 05), Dubna, Russia, 20-25 Jun 200

BOOK REVIEW OF THE BEST OF ME WRITTEN BY NICHOLAS SPARKS

The Best of MekaryaNicholash Sparks merupakan novel yang mengisahkantentangperjalanancintaantara Dawson Cole dan Amanda Collier yang terpaksaterhalangolehkedua orang tua Amanda yang tidakmerestuicintamerekakarenaperbedaankelassosialsehinggapadaakhirnyamerekaharusberpisah.Namun, setelahsekian lama berpisahmerekabertemukembalidengankeadaan yang telahberbeda.Tugasakhirinibertujuanuntukmengkajitentangnilai-nilai moral yang adapadatokohutama.Kelebihandari novel iniadalahnilai moral yang adapadatokohutamadankelemahanterdapatpada plot danpenggunaanbahasa yang susahdipahamidari novel The Best of Me. Dalammengkajibukuini, penulismemperoleh data denganmelakukanstudikepustakaandanmelaluireferensi yang penulisperolehmelaluisumber-sumberterkait. Dapatdisimpulkanbahwa novel The Best of Me banyakmelibatkanemosi yang menyentuhpembacadanmengajarkannilaisosialberupapengorbanan yang tulusuntuk orang lain sehinggabukuinilayakuntukdibacaolehremaja yang gemardengancerita roman