Sonakshi SinhaInstagramThe relationship status of Sonakshi Sinha has always remained overcast by clouds of delusions. The news of the junior shotgun’s very first link-up with co-actor Ranveer Singh had come out while she was shooting for Lootera. Later, she was linked with Shahid Kapoor during R…Rajkumar followed by Arjun Kapoor while shooting for Tevar. Of late, Sonakshi is now being rumoured to be dating the newbie Zaheer Iqbal, who is getting launched by Salman Khan in Notebook produced under Salman Khan Films banner.Amid the link-up rumours, earlier there were also reports that Sonakshi and showbiz professional Bunty Sachdev were dating for a while but they never acknowledged their relationship in public. But reports of their on and off romance often made their rounds of the tabloids. Their romance, however, remained short-lived as reports of their alleged break-up in February, last year, had flooded the internet.While there has never been a clearer picture about who Sonakshi’s dating life, people on social media often wonder whether the Dabangg actress is on a dating app. And when Sonakshi was asked on Arbaaz Khan’s new show if she is currently using a dating app to meet new people and hanging out with them, the junior shotgun gave a hilarious response to the question.”I don’t need a dating app,” Sonakshi laughed off to Arbaaz’s idea of meeting new people which was followed by a spontaneous, hilarious and dramatic expressions. So next time, if you come across any Sonakshi Sinha, remember that she is not the Dabangg girl for you to swipe right. However, she has again left her admirers with a question mark on her relationship status which we hope she must have clarified in the full episode. Sonakshi Sinha, Zaheer IqbalInstagramTalking about Sonakshi’s growing closeness with Salman’s protege, Zaheer, a source close to the Sinha family claimed that the link-up rumours are being spread for publicity for the new movie Notebook.”This is probably the publicity machinery at work. We normally have newcomers working together in their first film being linked together for publicity. But this time they chose to deflect the publicity to an outside source. But the Sinhas aren’t taking this lying down,” the source was quoted as saying by The Asian Age.The source further added, “She’s just being nice and sweet to a newcomer who happens to be launched by Salman Khan, just like Sonakshi was (in Dabanng). Zaheer is moving in the same circle these days as Salman.”Watch the video here.
Artist’s impression of a supermassive black hole. Credit: NASA/JPL-Caltech Italian astronomers have conducted an X-ray analysis of the accreting supermassive black hole in the broad line radio galaxy PKS 2251+11 as part of a study aimed at investigating the galaxy’s nuclear environment. The new research, presented in a paper published March 15 on arXiv.org, could improve the understanding of active galactic nuclei. Radio galaxies, which have active galactic nuclei (AGN), emit huge levels of radio waves from their central cores. Black holes at the center of these galaxies are accreting gas and dust, generating high-energy jets visible in radio wavelengths, which accelerate electrically charged particles to high velocities. In AGNs, the accreting material is reprocessed by the surrounding nuclear environment, so that these objects are observable at all wavelengths, from radio to gamma-rays. However, the structure of the nuclear environment still baffles scientists, and more studies, especially in the X-ray wavelength, are required in order resolve any uncertainties regarding this subject. Such observations could be a powerful tool for the investigation of the accretion-ejection physics in the neighborhood of supermassive black holes in AGNs.Broad-line radio galaxies (BLRGs), like PKS 2251+11 at a redshift of approximately 0.33, are excellent targets for high-quality X-ray observations due to the fact that they have the highest X-ray fluxes in the radio-loud population of AGNs. Therefore, high X-ray luminosity and the relative proximity of PKS 2251+11 make it an ideal candidate for a detailed analysis of the accretion regions in radio galaxies.So a group of astronomers led by Samuele Ronchini of Gran Sasso Science Institute in Italy has used ESA’s XMM-Newton space telescope to conduct spectral and timing analysis of PKS 2251+11 in the X-ray band in order to get more insight into the structure, kinematics and physical state of the nuclear environment in this galaxy.”Through the X-ray analysis of an observation performed with the XMM-Newton observatory, we have obtained novel information about the geometry, the kinematics and the physical state of the regions surrounding the accreting SMBH [supermassive black hole] at the center of the BLRG PKS 2251+11,” the astronomers wrote in the paper.The observations found that the X-ray source in PKS 2251+11 is partially covered by the ionized absorbing medium. This absorber is most likely clumpy and could be composed by distinct clouds with a covering factor of around 90 percent. The distance of the absorbing medium from the supermassive black hole was estimated to be around 0.33 light years, however, it cannot be excluded that the absorber is located much farther, in the zone of the dusty torus.The researchers also detected an iron K-alpha emission line at 6.4 keV. The intensity of this emission showcases variability on timescales of hours. The scientists added that besides this feature, no other spectral parameters exhibit significant variability during the observational campaign.In concluding remarks, the authors of the paper noted that many questions remain about PKS 2251+11, like the origin of its jet. This is mainly due to the lack of information regarding the state of the very innermost disk and the spin of the galaxy’s SMBH. However, the researchers note that the X-ray properties indicate that PKS 2251+11 does not differ significantly from the non-jetted AGNs. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. © 2019 Science X Network More information: Samuele Ronchini et al. X-ray analysis of the accreting supermassive black hole in the radio galaxy PKS 2251+11. arXiv:1903.06611 [astro-ph.HE]. arxiv.org/abs/1903.06611 Explore further Bright X-ray galactic nuclei Citation: Astronomers investigate supermassive black hole in the radio galaxy PKS 2251+11 (2019, March 27) retrieved 18 August 2019 from https://phys.org/news/2019-03-astronomers-supermassive-black-hole-radio.html