Magnetar Twists: Fermi/Gamma ray Burst Monitor (GBM) detection of SGR 1550-5418 (2009)
Kaneko, Y., Gogus, E., Kouveliotou, C., Ramirez-Ruiz, E., Granot, J., Van Der Horst, A. J., ...
SGR 1550-5418 (previously known as AXP 1E 1547.0-5408) went into three active bursting episodes in 2008 October and in 2009 January and March, emitting hundreds of typical Soft Gamma Repeater (SGR)...
An infrared ring around the magnetar SGR 1900+14 (2008)
Wachter, S., Ramirez-Ruiz, E., Dwarkadas, V. V., Kouveliotou, C., Granot, J., Patel, S. K., ...
Magnetars are a special class of slowly rotating neutron stars with extremely strong magnetic fields -- at least an order of magnitude larger than those of the "normal" radio pulsars. The potential...
Hoard, D. W., Wachter, S., Brinkworth, C. S., Kafka, S., Howell, S. B., Ciardi, D. R.
Cataclysmic variables have been extensively observed at optical, ultraviolet, and Xray wavelengths, where their white dwarf primary stars and bright accretion disks dominate their emitted luminosity....
Burleigh, M. R., Clarke, F. J., Hogan, E., Brinkworth, C. S., Bergeron, P., Dufour, P., ...
We report limits in the planetary-mass regime for companions around the nearest single white dwarf to the Sun, van Maanen's star (vMa2), from deep J-band imaging with Gemini North and Spitzer...
Burleigh, M. R., Clarke, F. J., Hogan, E., Brinkworth, C. S., Bergeron, P., Dufour, P., ...
We report limits in the planetary-mass regime for companions around the nearest single white dwarf to the Sun, van Maanen's star (vMa 2), from deep J-band imaging with Gemini North and Spitzer IRAC...
An infrared ring around the magnetar SGR 1900+14. (2008)
Wachter, S., Ramirez-Ruiz, E., Dwarkadas, V.V., Kouveliotou, C., Granot, J., Patel, S.K., ...
Original article can be found at: http://www.nature.com/nature/journal/v453/n7195/index.html Copyright Nature Publishing Group DOI: 10.1038/nature06987
Engelbracht, C. W., Blaylock, M., Su, K. Y. L., Rho, J., Rieke, G. H., Muzerolle, J., ...
We present the stellar calibrator sample and the conversion from instrumental to physical units for the 24 μm channel of the Multiband Imaging Photometer for Spitzer (MIPS). The primary calibrators...
Stansberry, J. A., Gordon, K. D., Bhattacharya, B., Engelbracht, C. W., Rieke, G. H., Marleau, F. R., ...
We describe the absolute calibration of the Multiband Imaging Photometer for Spitzer (MIPS) 160 micron channel. After the on-orbit discovery of a near-IR ghost image that dominates the signal for...
Brinkworth, C. S., Hoard, D. W., Wachter, S., Howell, S. B., Ciardi, David R., Szkody, P., ...
We present Spitzer photometry of six short-period polars, EF Eri, V347 Pav, VV Pup, V834 Cen, GG Leo, and MR Ser. We have combined the Spitzer IRAC (3.6-8.0 μm) data with the 2MASS JHK_s photometry...
Engelbracht, C. W., Blaylock, M., Su, K. Y. L., Rho, J., Rieke, G. H., Muzerolle, J., ...
We present the stellar calibrator sample and the conversion from instrumental to physical units for the 24 micron channel of the Multiband Imaging Photometer for Spitzer (MIPS). The primary...
The quasi-persistent neutron star soft X-ray transient 1M 1716-315 in quiescence (2007)
Jonker, P. G., Bassa, C. G., Wachter, S.
We report on our analysis of a 20 ksec Chandra X-ray observation of the quasi-persistent neutron star soft X-ray transient (SXT) 1M1716-315 in quiescence. Only one source was detected in the HEAO-I...
Cool Companions to White Dwarf Stars from the Two Micron All Sky Survey All Sky Data Release (2007)
Hoard, D. W., Wachter, S., Sturch, Laura K., Widhalm, Allison M., Weiler, Kevin P., Pretorius, Magaretha L., ...
We present the culmination of our near-infrared survey of the optically spectroscopically identified white dwarf stars from the McCook & Sion catalog, conducted using photometric data from the Two...
Brinkworth, C. S., Hoard, D. W., Wachter, S., Howell, S. B., Ciardi, D. R., Szkody, P., ...
We present Spitzer Space Telescope photometry of six short-period polars, EF Eri, V347 Pav, VV Pup, V834 Cen, GG Leo, and MR Ser. We have combined the Spitzer Infrared Array Camera (3.6 -8.0 microns)...
Stansberry, J. A., Gordon, K. D., Bhattacharya, B., Engelbracht, C. W., Rieke, G. H., Marleau, F. R., ...
A Possible Magnetar Nature for IGR J16358-4726 (2006)
Patel, S. K., Zurita, J., Del Santo, M., Finger, M., Kouveliotou, C., Eichler, D., ...
We present detailed spectral and timing analysis of the hard x-ray transient IGR J16358-4726 using multi-satellite archival observations. A study of the source flux time history over 6 years,...
The quasi-persistent neutron star soft X-ray transient 1M 1716−315 in quiescence (2006)
Jonker, P. G., Bassa, C. G., Wachter, S.
We report on our analysis of a 20 ks Chandra X-ray observation of the quasi-persistent neutron star soft X-ray transient (SXT) 1M 1716-315 in quiescence. Only one source was detected in the HEAO-1...
White Dwarf - Red Dwarf Systems Resolved with the Hubble Space Telescope: I. First Results (2006)
Farihi, J., Hoard, D. W., Wachter, S.
First results are presented for a Hubble Space Telescope Advanced Camera for Surveys snapshot study of white dwarfs with likely red dwarf companions. Of 48 targets observed and analyzed so far, 27...
Jets in Neutron Star X-ray Binaries: A Multi-Wavelength Study of Sco X-1 (2006)
Wachter, S., Bandyopadhyay, R.M., Markoff, S.B., Smale, A.P.
Jets are a ubiquitous feature in many different astrophysical objects. Among the best systems to study jet properties and formation are Galactic X-ray binaries (XRBs), systems composed of a neutron...
Chandra Localizations of LMXBs: IR Counterparts and their Properties (2004)
Wachter, S., Wellhouse, J. W., Bandyopadhyay, R. M.
We present new Chandra observations of the low mass X-ray binaries (LMXBs) X1624-490, X1702-429, and X1715-321 and the search for their Infrared (IR) counterparts. We also report on early results...
Wachter, S., Wellhouse, J. W., Patel, S. K., Smale, A. P., Alves, J. F., Bouchet, P.
We report on the precise localization of the low mass X-ray binaries X1624-490 and X1702-429 with the Chandra HRC-I. We determine the best positions to be 16:28:02.825 -49:11:54.61 (J2000) and...
Infrared Properties of Cataclysmic Variables in the 2MASS All Sky Data Release (2004)
Hoard, D. W., Brinkworth, C. S., Wachter, S.
We present results from our analysis of the near-infrared (J, H, and Ks) photometry for all cataclysmic variables from the catalog of Downes et al. (2001) that are detected in the (final) All Sky...
The search for the IR counterpart of the Soft Gamma-Ray Repeater SGR 1627-41 (2004)
Wachter, S., Eikenberry, S., Kouveliotou, C., Patel, S. K., Woods, P. M.
Wachter, S., Patel, S., Kouveliotou, C., Bouchet, P., Ozel, F., Tennant, A., ...
We present precise localizations of AXP 1E1841-045 and SGR 1627-41 with Chandra. We obtained new infrared observations of SGR 1627-41 and reanalyzed archival observations of AXP 1E1841-045 in order...
Structure and Colors of Diffuse Emission in the Spitzer Galactic First Look Survey (2004)
Ingalls, James G., Reach, William T., Noriega-Crespo, A., Carey, Sean J., Boulanger, F., ...
We investigate the density structure of the interstellar medium using new high-resolution maps of the 8 micron, 24 micron, and 70 micron surface brightness towards a molecular cloud in the Gum...
Far Infrared Imaging of NGC 55 (2004)
Engelbracht, C. W., Gordon, K. D., Bendo, G. J., Perez-Gonzalez, P. G., Misselt, K. A., Rieke, G. H., ...
We present images of the galaxy NGC 55 at 24, 70, and 160 micron obtained with the Multiband Imaging Photometer for Spitzer (MIPS) instrument aboard the Spitzer Space Telescope. The new images...
Migliari, S., Fender, R. P., Rupen, M., Wachter, S., Jonker, P. G., Homan, J., ...
We present the analysis of simultaneous X-ray (RXTE) and radio (VLA) observations of two atoll-type neutron star X-ray binaries: 4U 1820-30 and Ser X-1. Both sources were steadily in the soft...
Chandra observations of the peculiar X-ray transient IGR J16358-4726 (2004)
Patel, S.K., Kouveliotou, C., Tennant, A., Woods, P.M., Finger, M., King, A., ...
Disc-jet coupling in atoll-type neutron star X-ray binaries (2004)
Migliari, S., Fender, R.P., Rupen, M., Jonker, P.G., Klein Wolt, M., Hjellming, R.M., ...
SGR 1806-20: potential NIR counterpart. (2004)
Kouveliotou, C., Klose, S., Wachter, S., Woods, P., Patael, S., Klis, M. Van Der
The peculiar X-ray transient IGR J16358-4726 (2004)
Patel, S.K., Kouveliotou, C., Tennant, A., Wilson, C., Woods, P., Finger, M., ...
Multi-wavelength observations of the star forming region in L1616 (2004)
Alcalá, J. M., Wachter, S., Covino, E., Sterzik, M. F., Durisen, R. H., Freyberg, M. J., ...
SGR 1806-20: potential NIR counterpart (2004)
Kouveliotou, C., Klose, S., Wachter, S., Woods, P., Patel, S., Greiner, J., ...
The Peculiar X-Ray Transient IGR J16358-4726 (2004)
Patel, S.K., Kouveliotou, C., Tennant, A., Woods, P.M., King, A., Finger, M.H., ...
Migliari, S., Fender, R.P., Rupen, M., Wachter, S., Jonker, P.G., Homan, J., ...
We present the analysis of simultaneous X-ray (RXTE) and radio (VLA) observations of two atoll-type neutron star X-ray binaries: 4U 1820 - 30 and Ser X-1. Both sources were steadily in the soft...
Unraveling the cooling trend of the Soft Gamma Repeater, SGR 1627-41 (2003)
Kouveliotou, C., Eichler, D., Woods, P. M., Lyubarsky, Y., Patel, S. K., Gogus, E., ...
SGR 1627-41 was discovered in 1998 after a single active episode which lasted \~6 weeks. We report here our monitoring results of the decay trend of the persistent X-ray luminosity of the source...
The Peculiar X-ray Transient IGR 16358-4726 (2003)
Patel, S. K., Kouveliotou, C., Tennant, A., Woods, P. M., King, A., Ubertini, P., ...
The new transient IGR 16358-4726 was discovered on 2003 March 19 with INTEGRAL. We detected the source serendipitously during our 2003 March 24 observation of SGR 1627-41 with the Chandra X-ray...
Unraveling the Cooling Trend of the Soft Gamma Repeater SGR 1627-41 (2003)
Kouveliotou, C., Eichler, D., Woods, P.M., Lyubarsky, Y., Patel, S.K., Gogus, E., ...
The Peculiar X-ray Transient IGR J16358-4726 (2003)
Patel, S.K., Kouveliotou, C., Tennant, A., Wilson, C., Woods, P., Finger, M., ...
Solid immersion lens-enhanced micro-photoluminescence: principle and applications (2002)
Moehl, S., Zhao, Hui, Don, B. Dal, Wachter, S., Kalt, H.
We demonstrate the combination of a hemispherical solid immersion lens with a micro-photoluminescence setup. Two advantages introduced by the SIL, an improved resolution of 0.4 times the wavelength...
A Closer Look at the Soft X-ray Transient X1608-52: Long-term Optical/X-ray Observations (2001)
Wachter, S., Hoard, D. W., Bailyn, C. D., Corbel, S., Kaaret, P.
We report long-term simultaneous optical and (RXTE) X-ray observations of the soft X-ray transient and low mass X-ray binary X1608-52 spanning from 1999 to 2001. In addition to the usual X-ray...
Hoard, D. W., Wachter, S., Clark, L. Lee, Bowers, Timothy P.
Because accretion-generated luminosity dominates the radiated energy of most cataclysmic variables, they have been ``traditionally'' observed primarily at short wavelengths. Infrared observations of...
Repenser le territoire. Un dictionnaire critique (2000)
Lévy, J., Wachter, S., Bourdin. A., Offner, J.M., Padioleau, J.G., Scherer, F., ...
Tracking persons in monocular image sequences (1999)
Quantitative geometric descriptions of the movements of persons are obtained by fitting the projection of a three-dimensional person model to consecutive frames of an image sequence. The kinematic of...
Verfolgung von Personen in monokularen Bildfolgen (1997)
Die Fähigkeit, menschliche Aktivitäten durch Bildauswertung zu erkennen, ist eine Schlüsseleigenschaft beim Entwurf von Maschinen, die mühelos und intelligent mit Menschen interagieren sollen....
Clustering Methods and Commercial Rents.
interest rate ; economic models ; capital market