PREDNASAJUCI / LECTURER :

Olena Shubina

(1) Astronomical Institute, Slovak Academy of Sciences,
059 60 Tatranská Lomnica

NAZOV / TITLE :

Dust and gas environment of comet C/2022 E3 (ZTF) after the perihelion passage

ABSTRAKT / ABSTRACT :

Small celestial bodies are believed to contain primordial material from the Solar System formation
epoch. Long-period comets that, due to their dynamical characteristics, spend most of their time far
from the Sun consist of matter barely differentiated by Solar radiation. Moreover, comets that come
into the inner part of the Solar System for the first time are the most prominent objects for study
from this point of view. Comet C/2022 E3 (ZTF) is a hyperbolic comet that was discovered on March 2,
2022, with the 48-inch Schmidt-type telescope of the Zwicky Transient Facility (ZTF). C/2022 E3 (ZTF)
reached a perihelion distance of 1.112 au on January 12, 2023. We present the results of observations
obtained after the perihelion passage in January and February 2023, using broad- and narrow-band
photometric and long-slit spectroscopic methods. Such complex analysis allows us to
study more precisely the dust and gas components of the comet.