The ParticleSystem attached to this GameObject (Read Only). (null if there is none attached).

	var other : GameObject; 
	other.particleSystem.Emit(5);

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    public GameObject other;
    void Example() {
        other.particleSystem.Emit(5);
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	public other as GameObject

	def Example() as void:
		other.particleSystem.Emit(5)