scholarly journals Deformation of multilayers and optical surfaces in soft x-ray adaptive optics (Conference Presentation) (Withdrawal Notice)

Author(s):  
Benjamin J. Wylie-van Eerd ◽  
Huiyu Yuan ◽  
Evert Houwman ◽  
Oleksandr Antonov ◽  
Eric Louis ◽  
...  
2010 ◽  
Vol 1 (MEDSI-6) ◽  
Author(s):  
J. P. Sutter ◽  
S. Alcock ◽  
K. Sawhney

At the Diamond Light Source, adaptive bimorph mirrors are extensively used to focus synchrotron light. Piezo crystals embedded in each bimorph mirror expand or contract in response to applied voltages, enabling the curvature of the reflecting surface to adapt to the required form. However, high-grade metrology tools are needed to determine the optimal voltages. The Diamond Optics & Metrology group have implemented in situ (on the beamlines) and ex situ (in a metrology lab) methods of characterizing optical surfaces. For ex situ tests, a slope-measuring profiler (the Diamond-NOM (Nanometre Optical Metrology)) is employed. In situ, X-ray pencil beam scans, performed using an X-ray sensitive camera and software designed in-house, are used to correct optical slope errors. Ex situ and in situ data are shown to be in good agreement. Examples of in situ improvements in the focusing quality and deliberate defocusing are shown. The methods developed are also applicable to many other forms of adaptive optics.


2007 ◽  
Author(s):  
S. Kitamoto ◽  
Y. Ohkubo ◽  
M. Tsujimoto ◽  
T. Ogita ◽  
K. Saitoh ◽  
...  

2008 ◽  
Author(s):  
Charlotte Feldman ◽  
Richard Willingale ◽  
Carolyn Atkins ◽  
Hongchang Wang ◽  
Peter Doel ◽  
...  

1999 ◽  
Vol 38 (4) ◽  
pp. 684 ◽  
Author(s):  
Victor E. Asadchikov ◽  
Angela Duparré ◽  
Stefan Jakobs ◽  
Albert Yu. Karabekov ◽  
Igor V. Kozhevnikov ◽  
...  

2016 ◽  
Author(s):  
S. Kitamoto ◽  
R. Ishii ◽  
S. Nukamori ◽  
K. Imai ◽  
A. Mochida ◽  
...  
Keyword(s):  

Author(s):  
Ombeline de La Rochefoucauld ◽  
Samuel Bucourt ◽  
Daniele Cocco ◽  
Guillaume Dovillaire ◽  
Fabrice Harms ◽  
...  

2018 ◽  
Vol 620 ◽  
pp. A82 ◽  
Author(s):  
C. Circosta ◽  
V. Mainieri ◽  
P. Padovani ◽  
G. Lanzuisi ◽  
M. Salvato ◽  
...  

Theoretical models of galaxy formation suggest that the presence of an active galactic nucleus (AGN) is required to regulate the growth of its host galaxy through feedback mechanisms, produced by, for example, AGN-driven outflows. Although many observational studies have revealed that such outflows are common both at low and high redshift, a comprehensive picture is still missing. In particular, the peak epoch of galaxy assembly (1 <  z <  3) has been poorly explored so far, and current observations in this redshift range are mostly limited to targets with high chances to be in an outflowing phase. This paper introduces SUPER (a SINFONI Survey for Unveiling the Physics and Effect of Radiative feedback), an ongoing ESO’s VLT/SINFONI Large Programme. SUPER will perform the first systematic investigation of ionized outflows in a sizeable and blindly-selected sample of 39 X-ray AGN at z ∼ 2, which reaches high spatial resolutions (∼2 kpc) thanks to the adaptive optics-assisted IFS observations. The outflow morphology and star formation in the host galaxy will be mapped through the broad component of [O III]λ5007 and the narrow component of Hα emission lines. The main aim of our survey is to infer the impact of outflows on the on-going star formation and to link the outflow properties to a number of AGN and host galaxy properties. We describe here the survey characteristics and goals, as well as the selection of the target sample. Moreover, we present a full characterization of its multi-wavelength properties: we measure, via spectral energy distribution fitting of UV-to-FIR photometry, stellar masses (4 × 109 − 2 × 1011 M⊙), star formation rates (25 − 680 M⊙ yr−1) and AGN bolometric luminosities (2 × 1044 − 8 × 1047 erg s−1), along with obscuring column densities (up to 2 × 1024 cm−2) and luminosities in the hard 2 − 10 keV band (2 × 1043 − 6 × 1045 erg s−1) derived through X-ray spectral analysis. Finally, we classify our AGN as jetted or non-jetted according to their radio and FIR emission.


2017 ◽  
Vol 14 (S339) ◽  
pp. 281-282

49 posters were displayed at IAU S339. The display space was adequate to allow all to be on show throughout the conference.Poster presenters were given the option of condensing the message(s) of their posters into written summaries and/or depositing a pdf of the original poster for inclusion in the on-line version of the Proceedings. Half of the poster authors responded; 12 chose to send written summaries, 9 submitted just their original pdfs, and 4 elected to send both. Workshop 1 also converted some catalogue material into an on-line poster. This Section contains the contributions that were submitted as written summaries, arranged in alphabetical order of lead author.Near-Infrared Observations of OGLE Classical and Type II Cepheid Variables in the LMC ………. 283A. Bhardwaj, L. M. Macri, S. M. Kanbur, C-C. Ngeow and H. P. SinghMultiwavelength Light-Curve Analysis of Cepheid Variables ………. 287A. Bhardwaj, S. M. Kanbur, M. Marconi, H. P. Singh, M. Rejkuba and C-C. NgeowSymbiotic Stars in the Local Group of Galaxies: POINT-AGAPE Catalogue Revisited ………. 291K. Drozd, J. Mikołajewska, M. Darnley, K. Iłkiewicz, N. Caldwell and M. SharaDetection of Sectoral Modes in the Eclipsing Binary KIC 4851217………. 295M. Fedurco, Š. Parimucha & P. GajdošKepler-410Ab and Transit Timing Variations ………. 299P. Gajdoš, Š. Parimucha and M. FedurcoSparse Spatio-Temporal Imaging of Radio Transients ………. 303J. Girard, M. Jiang, J-L. Starck and S. CorbelTesting the SALT High-Resolution Spectrograph for Pulsation Studies of roAp Stars ………. 307D. Holdsworth and D. KurtzProbing Convective Mixing in Stellar Interiors with α Centauri A and B………. 308M. Joyce and B. ChaboyerHighly Luminous SNe Associated with GRBs………. 309D. KannSearching for Pulsating Stars Using Clustering Algorithms………. 310R. Kgoadi, I. B. Whittingham and C. A. EngelbrechtPhase-resolved Spectroscopy and Photometry of the Eclipsing Polar UZ Fornacis 314Z. N. Khangale, S. B. Potter and P. A. WoudtMeteor Sky in Time-Domain Astronomy………. 318S. V. KolomiyetsFirst Results from Project SUNBIRD: Supernovæ UNmasked By Infra-Red Detection………. 322E. C. Kool, S. D. Ryder, E. Kankare, T. Reynolds, S. Mattila, M. Pérez-Torres and R. McDermidThe X-Ray Spectrum of the X-Ray Binary 4U 1728-34, observed with Suzaku ………. 323Y. Lei, H. Zhang, H. Yuan and Y. ZhangStatistical Research into Correlation between Solar Filaments and Flare Activities………. 327G. LinA CoRoT view of the ζ Aur binary HR 6902………. 329C. Maceroni, J. Montalbán, R. Da Silva, T. Semaan, B. Mosser, M. Rainer, E. Poretti and E. GriffinSearching for Long-Period Binary Central Stars of Planetary Nebulæ with SALT HRS………. 330B. Miszalski, R. Manick, J. Mikołajewska, K. Iłkiewicz, D. Kamath and H. Van WinckelCompanion(s) of the Eclipsing Binary KIC 3832716………. 331Š. Parimucha, M. Fedurco and P. GajdošEvaluating the Fraction of Obscured Supernovæ in Luminous Infrared Galaxies with Adaptive Optics Surveys………. 335T. Reynolds, S. Mattila, E. Kool, E. Kankare, S. Ryder and M. A. Pérez-TorresDetecting AGB stars in LG Dwarf Galaxies for Understanding Galaxy Formation and Evolution………. 336E. Saremi, A. Javadi, J. van Loon, H. Khosroshahi and M. TorkiAccurate Photometry with Digitized Photographic Plates of the Moscow Collection………. 340K. V. Sokolovsky D. M. Kolesnikova, N. N. Samus, S. V. Antipin and A.A. BelinskiThe All-Sky Automated Search for Supernovæ Going Global………. 344M. Stritzinger and the ASAS-SN TeamStellar Parameterisation using KPCA and SVM………. 345H. Yuan, Y. Zhang, Y., Yiqiao Dong, Z. Bai, G. Li, W. Zhang, H. Zhang and Y. ZhaoΔa Photometric Survey of the Small Magellanic Cloud………. 349M. Zejda, E. Paunzen and Z. MikulášekDesign, Build and Test of the VOEvent Network for the SVOM Chinese Ground Segment………. 353M. Zhang, M. Huang and C. Wu


2011 ◽  
Vol 528 ◽  
pp. A34 ◽  
Author(s):  
E. Liuzzo ◽  
R. Falomo ◽  
A. Treves ◽  
D. Donato ◽  
M. Sambruna ◽  
...  
Keyword(s):  
X Ray ◽  

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