Herbig-Haro objects

He is perhaps best known for the discovery of Herbig-Haro objects.

In this stage bipolar jets are produced called Herbig-Haro objects.

Herbig-Haro objects are caused by the interaction of polar jets with the interstellar medium.

The nebula contains several Herbig-Haro objects, which are small irregularly variable nebulae.

A star-forming region of around 7000 M, it contains Herbig-Haro objects (protostars) and some very young stars.

An example of this application would be the observation of the kinematics of Herbig-Haro objects around their parent star.

Herbig-Haro objects are ubiquitous in star-forming regions, and several are often seen around a single star, aligned with its rotational axis.

Dark nebula Not all cloud-like structures are named nebulae; Herbig-Haro objects are an example.

In 2006 the first four Herbig-Haro objects were detected within the Hourglass, also including HH 870.

Guillermo Haro (astronomer, co-discoverer of Herbig-Haro objects)

Further observations have revealed that some Bok globules contain embedded warm sources, some contain Herbig-Haro objects, and some show outflows of molecular gas.

He is perhaps best known for his discovery, with Guillermo Haro, of the Herbig-Haro objects; bright patches of nebulosity excited by bipolar outflow from a star being born.

About 45 variable stars of the T Tauri type, young stars still in the process of formation as well as some 17 Herbig-Haro objects are known in M78.

YSO are also associated with early star evolution phenomena: polar jets and bipolar outflows, masers, Herbig-Haro objects, protoplanetary disks (circumstellar disks or proplyds).

The observatory has discovered special star clusters - stellar associations (1947), more than 1,000 flare stars, dozens of Supernovae, hundreds of Herbig-Haro objects and cometary nebulae, hundreds of galaxies.

The stars which are behind the creation of Herbig-Haro objects are all very young stars, the youngest of which are still protostars in the process of forming from their surrounding gases.

Jets from more evolved young stars - T Tauri stars - produce similar bow shocks, though these are visible at optical wavelengths and are called Herbig-Haro objects (HH objects).

These newly born stars emit jets of gas along their axis of rotation, which may reduce the angular momentum of the collapsing star and result in small patches of nebulosity known as Herbig-Haro objects.

Herbig-Haro objects (HH) are small patches of nebulosity associated with newly born stars, and are formed when narrow jets of gas ejected by young stars collide with clouds of gas and dust nearby at speeds of several hundred kilometres per second.

Among them were the detection of a large number of planetary nebulae in the direction of the galactic center and the discovery (also independently done by George Herbig) of the nonstellar condensations in high density clouds near regions of recent star formation (now called Herbig-Haro objects).

The largest young stars in the region, R, S, T Coronae Australis, TY and VV Coronae Australis, are all ejecting jets of material which cause surrounding dust and gas to coalesce and form Herbig-Haro objects, many of which have been identified nearby.