The Ultra-Fast Outflow of WKK 4438: Suzaku and NuSTAR X-ray Spectral Analysis

Previous X-ray spectral analysis has revealed an increasing number of AGNs with high accretion rates where an outflow with a mildly relativistic velocity originates from the inner accretion disk. Here we report the detection of a new ultra-fast outflow (UFO) with a velocity of $v_{\rm out}=0.319^{+0.005}_{-0.008}c$ in addition to a relativistic disk reflection component in a poorly studied NLS1 WKK~4438, based on archival \nustar and \suzaku observations. The spectra of both \suzaku and \nustar observations show an Fe~\textsc{xxvi} absorption feature and the \suzaku data also show evidence for an Ar~\textsc{xviii} with the same blueshift. A super-solar argon abundance ($Z^{\prime}_{\rm Ar}>6Z_{\odot}$) and a slight iron over-abundance ($Z^{\prime}_{\rm Fe}=2.6^{+1.9}_{-2.0}Z_{\odot}$) are found in our spectral modelling. Based on Monte-Carlo simulations, the detection of the UFO is estimated to be around at 3$\sigma$ significance. The fast wind most likely arises from a radius of $\geq20r_g$ away from the central black hole. The disk is accreting at a high Eddington ratio ($L_{\rm bol}=0.4-0.7L_{\rm Edd}$). The mass outflow rate of the UFO is comparable with the disk mass inflow rate ($\dot M_{\rm out}>30\%\dot M_{\rm in}$), assuming a maximum covering factor. The kinetic power of the wind might not be high enough to have influence in AGN feedback ($\dot E_{\rm wind}/L_{\rm bol}\approx 3-5\%$) due to a relatively small column density ($12^{+9}_{-4}\times10^{22}$~cm$^{-2}$). However note that both the inferred velocity and the column density could be lower limits owing to the low viewing angle ($i=23^{+3}_{-2}$$^{\circ}$).Comment: 7 pages, 3 figures, accepted by MNRA

Yukari dicle arkeolojik arastirma ppojesi (UTARP) kenan tepe 2000 yiki calismalari raporu

Journal ArticleBu rapor, Giineydogu Anadolu'da Diyarbakir ili iginde yer alan Kenan Tepe'nin ilk kazi mevsimi olan 2000 yih gali§malan hakkinda kisaca bilgi verme amacini ta§imaktadir. ilk kazi mevsiminin amaci yerle§menin kronolojisini, Kenan Tepe'de bulunan degi§ik donemlere ait yerle§melerin niteligi ve dogasini belirlemekti. Amacimizi, sorunlan ortaya koyarak ve olu§turdugumuz varsayimlari sinayarak bu dogrultuda be§ ile yedi yil siirmesi planlanan kazinin stratejisini saptamak olarak agiklayabiliriz. Kenan Tepe, Bismil ilgesinin yakla§ik 15 km dogusunda, Diyarbakir-Batman karayolunun hemen yakimnda, Dicle Nehri'ne dogru, Yukan Dicle Havzasi'mn geni§ vadisine bakan kiregtasi kayaliklann uzerinde yer almaktadir (§ekil 1). Kenan Tepe'deki gah§malar Temmuz 2000 yilinin ortalannda ba§layip Agustos sonunda sona ermi§tir. Bu yilki gali§malarda 2 x 25 m boyutlannda basamakli bir agma ile ba§layarak 5 x 5 m'lik on tane agma agtik, iig tane derin sondaj kazdik ve yerle§mede alti alanda iki kesit temizledik (A-F alanlan, §ekil 2)

Yukari dicle arkeolojik arastirma projesi (UTARP): kenan tepenin kulturel tarihinin on sentezi

Journal ArticleBu raporun amaci Guneydogu Tiirkiye'de, Ilisu Baraji bolgesinde onemli bir arkeolqjik yerle§me olan Kenan Tepe'nin kiiltiir tarihi hakkindaki bugiinkii bilgimizi ozetlemektir (§ekil 1). Bu sentezin biiyiik boliimii Yukan Dicle Arkeolojik Ara§tirma Projesi (UTARP) iiyelerinin 2001 yazinda yiiriittiikleri ara§tirmaya dayanir, ancak 2000 kazi sezonunda kazilmis, olan veriler de kullanilmi§tir. Raporda, verilerin detayli tarifleri yer almaz. Bu bilgiler icin okuyuculanmizi diger UTARP raporlanna yonlendirmekteyiz (Parker et al. 2002a, 2002b, 2003a, 2003b). 2001 yazindaki ara§tirma 21 Haziran - 24 Agustos tarihleri arasinda yapildi. UTARP iiyeleri yerle§menin yedi ayn bolgesinde operasyonlar yonettiler (§ekil 2). A alaninda, gecen yil ba§lattigimiz 2 x 25 m'lik basamak acmada (acma A 2) kazilara devam ettik; bu arada Utah Universitesi'nden bir grup antropolog 2 x 10 m'lik bir seri acma a§arak Kenan Tepe'nin gee donem mezarligini (A 3 - A 7) ara§tirdilar. Biz B alaninda (B 4) 10 x 10 m'lik yeni bir acma actik. C alaninda iki tane yeni 10 x 10 m'lik a§ma acjtik (C 3 ve C 4) ve gecen yil kazdigimiz 5 x 5 m'lik iki a§mada (C 1 ve C 2) kazilara devam ettik. D alaninda gegen yil ba§latilan iki acma 5 x 10 m'ye geni§letildi (D 4 ve D 5).

Yukarı Dicle Arkeolojik Araştırma Projesi (UTARP) boztepe vuzey arastirmasi ve kazilari, talavas, tepe yontemli yuzey arastirmasi, 1999 on rapor

Journal ArticleBoztepe sit alani, Giineydogu Anadolu'da, Diyarbakir ili, Bismil ilce merkezinin 8 km dogusunda yeralir (§ekil 1 ve 2). Bugiinkii haliyle Boztepe kiicuk ve goreceli olarak aleak bir hoyiiktiir. Bazi yerlerde kiiltiir tabakalan 4 m derinlige ula§masina kar§in, hoyiigiin on goriinumiinii cevredeki tepelerden ve kivnmli araziden ayirmak 90k gucttir. Boztepe'de arkeolojik ara§tirmalar 1999 yih Temmuz ayi ba§inda, hoyiigiin iki farkh boliimiinde, dort adet 5x5 m'lik acma ile ba§lami§tir\ Sezon sonu itiban ile bu sayi onbir acmaya ve iki sondaja yiikselmi§tir (§ekil 3). Aym zamanda, Boztepe'de ve hemen yakininda bulunan Talava§ Tepe'de geni§ caph yiizey ara§tirmasi yapilmi§tir (Bkz. §ekil 2 ve a§agisi). Burada, bu calis,malann sonuclannin bir on raporu sunulmaktadir

The upper Tigris archaeological research project: a final report from the 1999 field season

pre-printDuring the summer of 1999 members of the Upper Tigris Archaeological Research Project (UTARP) conducted archaeological excavations and surveys at two sites in the upper Tigris river region of southeastern Turkey. This article presents the results of that research. At the site of Boztepe excavations yielded four Halaf period burials, all of which contained grave goods, and an Iron Age house dated by C14 to the Assyrian Imperial period. Intensive surveys at Talava^ Tepe and Boztepe have refined the chronology and size of both sites. Although the exposures of the Halaf period are very small, these data add important insights into Halaf mortuary practices, while evidence from both Boztepe and Talava? Tepe supplements our understanding of the upper Tigris river region during the Iron Age