We present post-outburst (∼ 100 days after outburst) radio continuum observation of the region (∼ 30 ×30) around McNeil’s nebula (V1647 Orionis). The observations were carried out using the Giant Metrewave Radio Telescope (GMRT), India, at 1272 MHz on 2004 Feb 14.5 UT. Although 8 sources have been detected within a circular diameter of 25 centred on V1647 Ori, we did not detect any radio contin...

We present moderate and high-dispersion 1–2.5 µm spectra of the ∼10 ′′-radius nebula around P Cygni, dominated by bright emission lines of [Fe ii]. Observed [Fe ii] line ratios disagree with theoretical transition rates in the literature, so we use the spectrum of P Cygni's nebula to constrain the atomic data for low-lying levels of [Fe ii]. Of particular interest is the ratio [Fe ii] λ12567/λ1...

A 63-year old female was admitted with sudden unbearable retrosternal chest pain which started immediately after a heated argument with her daughterin-law. There were no cardiovascular risk factors. Examination was normal and electrocardiogram (ECG) showed ST elevation in leads I, aVL, and V6 and ST depression with T inversion in lead III, aVF (Figure). Troponin I was 4.43 ng/ml (normal < 0.04 ...

Hubble Space Telescope Observations of Black Hole X-Ray Transients are discussed in the context of the disk instability outburst model. We focus on the multiwavelength campaign following GRO J1655-40 through the summer 1996 outburst.

Spruce (Picea Abies L.) trees from the same clone were supplied with different, but low, amounts of plant available sulfate in the soil (9.7-18.1 milligrams per 100 grams of soil). Branches attached to the trees were enclosed in a dynamic gas exchange cuvette and analyzed for the emission of volatile sulfur compounds. Independent of the sulfate supply in the soil, H(2)S was the predominant redu...

We present results from a 40 ks XMM-Newton observation of the X-ray filament coincident with the southeast edge of the Centaurus A Northern Middle Radio Lobe (NML). We find that the X-ray filament consists of five spatially resolved X-ray knots embedded in a continuous diffuse bridge. The spectrum of each knot is well fitted by a thermal model with temperatures ranging from 0.3-0.7 keV and subs...

Context. Although its well determined mass ratio of q = Msec/Mwd = 0.357 ± 0.007 should avoid superoutbursts according to the thermal tidal instability model, the prototypical dwarf nova U Gem experienced in 1985 an extraordinary long outburst resembling very much superoutbursts observed in SU UMa systems. Recently, the situation for the model became even worse as superhump detections have been...

SN 2008S erupted in early 2008 in the grand design spiral galaxy NGC 6946. The progenitor was detected by Prieto et al. in Spitzer Space Telescope images taken over the four years prior to the explosion, but was not detected in deep optical images, from which they inferred a self-obscured object with a mass of about 10M . We obtained Spitzer observations of SN 2008S five days after its discover...

The most luminous X-ray sources in nearby elliptical galaxies are likely black hole low-mass X-ray binaries (BHLMXBs). In the Milky Way, such systems are always transient, and with the exception of GRS1915+105 have burst durations on the order of weeks or months. However, the low duty cycle of short-duration outburst BHLMXBs makes it improbable that any one source would be caught in an outburst...