Relationship between earth-directed solar eruptions and magnetic clouds at 1AU: A brief review

We review relationships between coronal mass ejections (CMEs), EIT post eruption arcades, and the coronal neutral line associated with global magnetic field and magnetic clouds near the Earth. Our previous findings indicate that the orientation of a halo CME elongation may correspond to the orientation of the underlyig flux rope. Here we revisit these preliminary reports by comparing orientation angles of elongated LASCO CMEs, both full and partial halos, to the post eruption arcades. Based on 100 analysed events, it was found that the overwhelming majority of halo CMEs are elongated in the direction of the axial field of the post eruptio arcades. Moreover, this conclusion also holds for partial halo CMEs as well as for events that originate further from the disk center. This suggests that the projection effect does not drastically change the appearance of full and partial halos and their imagesstill bear reliable information about the underlying magnetic fields. We also compared orientations of the erupted fields near the Sun and in the interplanetary space and found that the local tiltof the coronal neutral line at 2.5 solar radii is well correlated with the magnetic cloud axis measured near the Earth. We suggest that the heliospheric magnetic fields significantly affect the propagating ejecta. Sometimes, the ejecta may even rotate so that its axis locally aligns itself with the heliospheric current sheet.Comment: 12 pages; 8 figure

Problems of legality of investigative actions aimed at finding evidence

The purpose of the article is a comprehensive study of the problems of establishing the guilt of a person in the offense committed by means of pre-trial investigation by investigators, prosecutors and other persons authorized to do so, as well as establishing the lawfulness of such procedural actions. According to the purpose, it is substantiated that the investigative review is a visual inspection by the authorized persons of the object with the purpose of revealing the traces of the crime, the objects related to its commission, as well as the information about the fact and mechanism of its commission reflected in the features of this object and other circumstances relevant to the proceedings. It is established that the factual basis for the review is primarily data that indicate the possibility of detecting on the body of the person traces of the offense or special signs. Its special procedural basis is the motivated decision of the prosecutor. Procedural actions such as corpse exhumation, investigative experiment and forensic examination have been considered and analyzed. In the process of researching the topic, the authors conclude that in Ukraine the legality and objectivity of investigative actions needs to be more clearly enshrined in law. In particular, the authors propose an additional list of objects of the investigative review and the definition of the investigative examination, the separation of the actual grounds for conducting the examination, the approval of the provisions on the mandatory participation of those understood during the exhumation of the corpse as the investigator, the definition and actual reasons for conducting the investigative experiment as an action, the purpose of which is the experimental verification or refinement of factual data obtained in the course of the investigation, as well as the determination and factual basis of the conduct and appointment of forensic expertise